PIX + Rotary static NAT to load balance?

You can load balance of static behind a PIX with nat servers as you can do it on a router cisco (rotating)?

* If Yes, someone at - it had a link to an example?

Hakuna Mete.

Hello Hakuna,

Unfortunately, this is not possible on the PIX. Sorry!

Renault

Tags: Cisco Security

Similar Questions

BONES of PIX v6.3: Load Balancing Configuration

Using the new feature of balancing by OSPF, is it possible to create a parallel table of the PIX to simulate a "dynamic load balancing environment"? Please explain why or not.

If the answer is no, then, is it possible to create an environment of load balancing 'static '? How would this work? advantages and disadvantages?

Kind regards.

Fix... You need something in front of and behind the Pix to ensure that a session is maintained through the same Pix. This can also be done by NAT.

PIX OSPF question load balancing

I have a pix 515e with two default routes, via OSPF from two routers on the "outside" interface

Route #2 is currently being preferred spending much more than the #1 router. There are thousands of destinations for traffic. These two routers are still NAT nat rfc1918 IP Internet (the pix doesn't nat)

Can you get it someone please let me know how the PIX is load balancing? is it by destination IP address? is it something else?

Thank you

Joe

TAC:

"the PIX will be per destination load balancing instead of by package

load balancing. The algorithm will look at the source and destination

addresses. It is not 1:1 load balancing. Given quite different

the source address and destination, the packets will reach more or less one

spindle of 50-50 between the two next-hops. However, in the real world test

with the same source and destination addresses, it may not reach the same

load balancing. »

PIX / ASA - OSPF load balancing

Hello

I read the balance a route via OSPF equal cost load the PIX. It will send packages via per package, or is there another method for distibuting the traffic to the break following equal cost?

Thank you!!

Lee

Hello Lawrence,.

PIX 6.3 now supports the NLB using OSPF only (up to 3 default routes)

The PIX can receive up to 3 doors by default (all the same metric) 3 different routes of entry, and

balance the load on a per destination basis. Currently, there is no way the PIX to

determine which carries a package will be sent to. You cannot currently use static routes

for load balancing.

The used hash algorithm is not simple, it is very difficult to determine which

Route (next hop) a package will be given an IP Source and Destination pair. Basically,.

the PIX takes the source and destination IPs (two 32-bit numbers) and axe in one

16-bit unique number. Then the number of 16-bit (0x0000 - 0xFFFF) is divided into thirds.

The first 1/3 goes to the door of entry 1, the next 1/3 goes to the door of entry 2, and the last 1/3 goes to

Gateway 3.

I hope this helps! If Yes, please rate.

Thank you

PIX - static NAT problems

I'm doing a static route to xxx.242.139.164 to 192.168.1.13 and open ports 25 and 443. I am at a loss for what I missed to make this happen. I would also like to open the ICMP traffic or at the least response to echo so I can test the IP addresses and that doesn't seem to work either.

PIX config attached .txt file.

Thanks for any help!

Hi Comoms,

This is your problem:

(1) here say you do not NAT traffic.

NAT (inside) 0-list of access inside_outbound_nat0_acl

inside_outbound_nat0_acl ip access list allow any xxx.242.139.160 255.255.255.224

(2) then you use it for the static NAT.

public static xxx.242.139.164 (Interior, exterior) 192.168.1.13 dns netmask 255.255.255.255 0 0

(3) it's totally fake, first u say don't not NAT traffic, try you NAT, it. How will it work?

(4) even if uou help with ACL, it won't work.

(5) Please check your routes n NAT ACL, NAT STATIC, once again.

HTH

MAR

PIX 501 PPPoE w / static NAT loss of connectivity

I have a {should} installation very simple. PIX 501 with PPPoE on the external interface, 3 inside customers using PAT and 1 inside the client I am trying to use an address mapping static on permit communications with this host from the outside using a particular service. I did a lot of these before where there was an ADSL router in front of the PIX, but this is the first where I've used the PIX as the PPPoE client. When I use the static NAT for the single host it loses all connectivity beyond the PIX outside interface. When I get rid of the static mapping, through PAT very well. I spent many hours troubleshooting and control a lot of obvious things, but I am at a loss right now... unless it could be a problem with the IP address that has been assigned by the ISP for use with static NAT. Any thoughts on this would be greatly appreciated.

Thank you

Sorry, in your case that static would look like this because of the dynamic IP.

static (inside, outside) 23 interface 10.1.1.1 23 netmask 255.255.255.255

Daniel

Double connection ISP and load balancing

Hi all

I have the Cisco 2911 router k 9/s with 3 GB ports. I have also two different ISP connections, all have two different available bandwidth (one is asymmetrical, else a symmetrical).

What I want to achieve is to ensure the balance of Nice load between two ISPS for all PCs behind the NAT device.

What I know so far, it's that I can use CEF or PfR/REL. For both of this technology, I have some doubts.

CEF: distributes the network load between the two connections based on sessions (which is good, because I strongly to use tools like Skype or Lync for audio/video conversations). However, what is happening, when I get on one of the ISP connections broadband bandwidth max? He's going to choke for 50% of the connections? Or it will detect the use of bandwidth and to force using second ISP?

PfR/REL: as far as I understood it resolves my concern regarding the use of the connection, but what happens to the session? Should it also be based on this mechanism? As you know that it is very important for audio/video connections.

Are there other tools that can provide these load balancing? I know DAB, but I don't want to decide manually, where each service (e.g. http or ssh) will have to go. I'm looking for something more automated.

Thanks in advance for any help.

Piotr

Hello

I assume that you have a static route for the subnet 213.192.65.0/24 on top of the output and with the combination of order

network default IP 213.192.65.105 213.192.65.105 IP address is installed as a default gateway. What is the #2 ISP?

If so, it explains why he always goes on ISP2 only.

http://www.Cisco.com/en/us/Tech/tk365/technologies_tech_note09186a0080094374.shtml#flagging

Just remove the config:

Noneip default-network 213.192.65.105

Noneip default-gateway 213.192.65.105

Then again check the routing table:

SH ip route

Hope it helps.

Best regards
Akim

Hi ALL, did any attempt on the virtual computer NETWORK load balancing using HYPERV on UCS blades

I try to configure the CASE server cluster by using the Unicast NLB on the virtual machine on different blades on the UCS, it works for awhile, then he abandoned packages.

I heard that this screenplay of unicast is not supported in the UCS when she used END-host mode in the fabric interconnet...? any attempted before.

Would it, I use the multicast mode is that something needs to be done on the FBI62020 or the LAN switch upstream. ??

Header note I found on the implementation of UCS for mulitcast NLBL:

Microsoft NLB can be deployed in 3 modes:

Unicast

Multicast

IGMP multicast

For series B UCS deployments, we have seen that the multicast and IGMP multicast work.

IGMP multicast mode seems to be the more reliable deployment mode.

To do this, the monitoring settings:

All NLB Microsoft value "Multicast IGMP" nodes. Important! Check ths by logging into EACH node independently. Do not rely on the MMC of NLB snap.

An IGMP applicant must be present on the VLAN of NLB. If PIM is enabled on the VIRTUAL LAN that is your interrogator. UCS cannot function as applicant IGMP. If an interrogator of functioning is not present, NLB IGMP mode will not work.

You must have a static ARP entry on cheating it upstream pointing IP address Unicast NLB on the multicast MAC address NETWORK load balancing. This need will set up, of course, on the VLAN of the NLB VIP. The key is that the routing for the NLB VLAN interface must use this ARP entry as a unicast IP ARP response may not contain a multicast mac address. (Violation of the RFC 1812) Hosts on the NLB VLAN must also use the static entry. You may have several entries ARP. IOS can use a function of 'alias' of ARP. (Google it.)

How Microsoft NLB works. -The truncated for brevity Mac addresses.

TOPOLOGY OF NLB MS

NETWORK VLAN 10 = subnet 10.1.1.0/24 IP load balancing

VIP = 10.1.1.10 NETWORK LOAD BALANCING

Arp entry static switch advanced IP 10.1.1.10 upstream to MAC 01

NLB VIP (MAC 01, IP 10.1.1.10)

NODE-A (AA, MAC IP:10.1.1.88)

NŒUD-B (MAC BB, IP:10.1.1.99)

Using the IGMP snooping and interrogator VLAN snooping table is filled with the mac NLB address and groups pointing to the appropriate L2 ports.

MS NLB nodes will send the responses of IGMP queries.

This snooping table could take 30 to 60 seconds to complete.

Host on VLAN 200 (10.200.1.35) sends traffic to NETWORK VIP (10.1.1.10) load balancing

It goes of course to VLAN 10 interface that uses the static ARP entry to resolve to address MAC 01 VIP NETWORK load balancing.

Since it is a multicast frame destination it will be forward by the IGMP snooping table.

The framework will arrive at ALL NLB nodes. (NŒUD-A & NŒUD-B)

NLB nodes will use its load balancing algorithm to determine which node will manage the TCP session.

Only one NLB node will respond to this host with TCP ACK to start the session.

NOTES

This works in a VMware with N1k, standard vSwtich and vDS environment. Where surveillance IGMP is not enabled, the framing for VIP MAC NETWORK load balancing will be flooded.

NLB can only work with TCP-based services.

As stated previously mapping an IP unicast to a multicast mac address is a violation implied by RFC 1812.

TROUBLESHOOTING

Make sure your interrogator is working. Just to clarify that this does not mean that it is actually at work.

Wireshark lets check that IGMP queries are received by the NLB nodes.

Make sure that the ARP response works as expected. Once Wireshark again is your friend.

Look at the paintings IGMP snooping. Validate the L2 ports appearing as expected.

CSCtx27555 [Bug-preview for CSCtx27555] Unknown multicast with destination outside the range MAC 01:xx: are deleted. (6200 FI fixed in 2.0.2m)

IGMP mode not affected.

CSCtx27555 Unknown multicast with destination outside the range MAC 01:xx: are deleted.

http://Tools.Cisco.com/support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtx27555

fixed in 2.0(2m)

Solution: Change the NLB mode of operation of "Multicast" to "multicast IGMP', which modifies balancing load NETWORK VIP MAC at 0100.5exx.xxx Beach, allows to transfer occur as expected.

Q: and if I switch to switch mode, which means all of the profile and the settings on the servers are completely exhausted and I need to recreate them. ???

A:Cisco Unified Computing System Ethernet switching Modes

http://www.Cisco.com/en/us/solutions/collateral/ns340/ns517/ns224/ns944/whitepaper_c11-701962.html

-There is no impact on the configuration, you have done service profiles. they will continue to work as expected. Mode selector has the FI behave more like a conventional switch. Most notable is that Spanning tree will be activated and if you have several uplinks yew, tree covering weight will begin to block redundant paths.

You need to review your topology and what impact tree covering weight. Generally, we at the switch port upstream defined as "edge master", you want to delete this line.

For pre-production and laboratory environment, PDI can help qualified with the planning, design and implementation partners. Given to review the IDP site and open a case if you need more detailed assistance.

Nexus 1000v, UCS, and Microsoft NETWORK load balancing

Hi all

I have a client that implements a new Exchange 2010 environment. They have an obligation to configure load balancing for Client Access servers. The environment consists of VMware vShpere running on top of Cisco UCS blades with the Nexus 1000v dvSwitch.

Everything I've read so far indicates that I must do the following:

1 configure MS in Multicast mode load balancing (by selecting the IGMP protocol option).

2. create a static ARP entry for the address of virtual cluster on the router for the subnet of the server.

3. (maybe) configure a static MAC table entry on the router for the subnet of the server.

3. (maybe) to disable the IGMP snooping on the VLAN appropriate in the Nexus 1000v.

My questions are:

1. any person running successfully a similar configuration?

2 are there missing steps in the list above, or I shouldn't do?

3. If I am disabling the snooping IGMP on the Nexus 1000v should I also disable it on the fabric of UCS interconnections and router?

Thanks a lot for your time,.

Aaron

Aaron,

The steps above you are correct, you need steps 1-4 to operate correctly. Normally people will create a VLAN separate to their interfaces NLB/subnet, to prevent floods mcast uncessisary frameworks within the network.

To answer your questions

(1) I saw multiple clients run this configuration

(2) the steps you are correct

(3) you can't toggle the on UCS IGMP snooping. It is enabled by default and not a configurable option. There is no need to change anything within the UCS regarding MS NLB with the above procedure. FYI - the ability to disable/enable the snooping IGMP on UCS is scheduled for a next version 2.1.
```
This is the correct method untill the time we have the option of configuring static multicast mac entries on

the Nexus 1000v.  If this is a feature you'd like, please open a TAC case and request for bug CSCtb93725 to be linked to your SR.
This will give more "push" to our develpment team to prioritize this request.
Hopefully some other customers can share their experience.
Regards,
```
Robert

Load Balancing does not not on 2911

Hello people,

I have some difficulty to operate the Load Balance on my 2911.

I have followed the editing on this site:

http://www.Cisco.com/en/us/Tech/tk648/tk361/technologies_configuration_example09186a0080950834.shtml

and APARENTLY it works, but not in reality, because I see packets using a NAT IPS bot thru, but when I check on the interfaces I see we're not receive / send anything.

Background:

G0/0, I have one ISP, other 1/G0, G0/2 my network.

Building configuration...

Current configuration: 6045 bytes

!

! Last configuration change to 15:47:49 UTC Tuesday, January 28, 2014 by alan

! NVRAM config update at 14:32:59 UTC Tuesday, January 28, 2014 by alan

! NVRAM config update at 14:32:59 UTC Tuesday, January 28, 2014 by alan

version 15.1

horodateurs service debug datetime msec

Log service timestamps datetime msec

encryption password service

!

ROUTER1 hostname

!

boot-start-marker

boot-end-marker

!

!

logging buffered 51200 warnings

!

No aaa new-model

!

!

No ipv6 cef

IP source-route

IP cef

!

!

!

!

dhcp LAN_DHCP_POOL IP pool

network 192.168.0.0 255.255.0.0

default router 192.168.2.2

domain g_bacon

DNS 8.8.8.8 Server 208.67.222.222

0 8 rental

!

!

no ip domain search

IP host ROUTER1 192.168.2.2

8.8.8.8 IP name-server

name-server IP 208.67.222.222

IP-server names 8.8.4.4

IP-server names 208.67.220.220

!

Authenticated MultiLink bundle-name Panel

!

!

Crypto pki token removal timeout default 0

!

Crypto pki trustpoint TP-self-signed-2101532551

enrollment selfsigned

name of the object cn = IOS - Self - signed - certificate - 2101532551

revocation checking no

rsakeypair TP-self-signed-2101532551

!

!

TP-self-signed-2101532551 crypto pki certificate chain

certificate self-signed 01

3082022B 30820194 02020101 300 D 0609 2A 864886 F70D0101 05050030 A0030201

2 060355 04031326 494F532D 53656 C 66 2 AND 536967 6E65642D 43657274 31312F30

69666963 32313031 35333235 6174652D 3531301E 32313137 OF 31323239 170 3131

31335A 17 0D 323030 31303130 30303030 305A 3031 06035504 03132649 312F302D

4F532D53 5369676E 656C662D 43 65727469 66696361 74652 32 31303135 65642D

33323535 3130819F 300 D 0609 2A 864886 01050003, 818, 0030, 81890281 F70D0101

8100DEA3 06574FDF B2B2113F 84A1EF39 9969F4D9 04131994 A3FCC466 D0328CCF

B219F1AE A3DCC204 CD993BB2 F59C9A7F C251024E 382162 5 D9277CEB F1A575A5

0356 C 896 A7A1BB48 8EA4CFF6 DA77B72C 9904A73B 6731A6E0 3004E5EA B44C1F7F

5667496C 1E8E603D BE9B1AA1 1065E449 F6110C17 1A5FE3B9 3593BF87 96E14DEC

010001A 3 53305130 1 130101 FF040530 030101FF 301F0603 0F060355 87FF0203

551 2304 18301680 14E5F8C8 C30593C3 CEAB1874 F94F070B 9674F152 AD301D06

03551D0E 04160414 E5F8C8C3 0593C3CE AB1874F9 4F070B96 74F152AD 300 D 0609

2A 864886 F70D0101 A 05050003 81810092 51314, 50 EA812CDA AC97A8D1 2CA06BCC

6FD5B4A6 DA888322 E2166AB4 0CF340BB E0407C95 584A1BDF 5DC3A6EE 2862E9CF

7BF0C831 54F06ABF 011664 D 3 75269FF3 02D434BD 0FD15F32 EB34730C 47FE29D9

7C2BBF9D 5BDB1D4F EEBFBED5 9B07450E 83DA57B2 1F296D0A 52D39A8F 6A 679244

05C0924C F3FA9A05 53198E BDB28409

quit smoking

license udi pid CISCO2911/K9 sn FTX1553AJQU

!

!

username privilege 15 secret 5 alan $1$ b6Jk$ 8iz3K3cTUgSZ.VePkKl5a.

!

redundancy

!

!

!

!

!

class-map correspondence-any PROHIBIDAS

Protocol httpwww.facebook.comhost game «»

Protocol httpwww.youtube.comhost game «»

match Protocol http host 'www.pornotube.com.

Protocol http host «www.xvideos.com» game

match Protocol http host 'www.mega.co.nz'.

match Protocol http host 'www.radios-on-line.com.ar'.

match Protocol http host 'www.enlaradio.com.ar'.

Protocol http host «www.cienradios.com.ar» game

match Protocol http host 'www.radios-argentina.com.ar'.

match Protocol http host 'www.fmyam.com.ar'.

Protocol http host «www.piratebay.org» game

class-map match-all P2P

winmx Protocol game

gnutella Protocol game

bittorrent Protocol game

match Protocol kazaa2

!

!

Policy-map DROP_PROHIBIDAS

class PROHIBIDAS

drop

class P2P

drop

!

!

!

!

!

!

!

!

the Embedded-Service-Engine0/0 interface

no ip address

Shutdown

!

interface GigabitEthernet0/0

Fibertel description

DHCP IP address

IP access-group acl101 in

IP access-group out acl101

NAT outside IP

IP virtual-reassembly in

automatic duplex

automatic speed

No cdp enable

out of service-policy DROP_PROHIBIDAS

!

interface GigabitEthernet0/1

Arnet description

IP 186.153.125.138 255.255.255.248

IP access-group acl101 in

IP access-group out acl101

NAT outside IP

IP virtual-reassembly in

automatic duplex

automatic speed

No cdp enable

out of service-policy DROP_PROHIBIDAS

!

interface GigabitEthernet0/2

IP 192.168.2.2 255.255.0.0

IP access-group block_FB in

IP access-group out acl101

IP nat inside

IP virtual-reassembly in

IP tcp adjust-mss 1452

automatic duplex

automatic speed

No cdp enable

!

router RIP

version 2

network 192.168.0.0

!

IP forward-Protocol ND

!

IP http server

IP 8180 http port

20 class IP http access

IP http secure server

IP http timeout policy slowed down 60 life 86400 request 10000

!

IP nat inside source map route address interface GigabitEthernet0/1 overload

IP nat inside source map route fibertel interface GigabitEthernet0/0 overload

IP route 0.0.0.0 0.0.0.0 track GigabitEthernet0/0 123

IP route 0.0.0.0 0.0.0.0 200.122.102.1 254

!

block_FB extended IP access list

deny ip 192.168.0.0 0.0.255.255 welcome 173.252.100.16

deny ip 192.168.0.0 0.0.255.255 173.252.64.0 0.0.63.255

deny ip 192.168.0.0 0.0.255.255 31.13.24.0 0.0.7.255

deny ip 192.168.0.0 0.0.255.255 31.13.64.0 0.0.63.255

deny ip 192.168.0.0 0.0.255.255 66.220.144.0 0.0.15.255

deny ip 192.168.0.0 0.0.255.255 69.63.176.0 0.0.15.255

deny ip 192.168.0.0 0.0.255.255 69.171.224.0 0.0.31.255

deny ip 192.168.0.0 0.0.255.255 74.119.76.0 0.0.3.255

deny ip 192.168.0.0 0.0.255.255 103.4.96.0 0.0.3.255

deny ip 192.168.0.0 0.0.255.255 204.15.20.0 0.0.3.255

IP 192.168.0.0 allow 0.0.255.255 everything

allow an ip

!

access-list 110 permit ip 192.168.0.0 0.0.255.255 everything

!

!

!

!

route allowed fibertel 10 map

corresponds to the IP 110

is the interface GigabitEthernet0/0

!

arnet allowed 10 route map

corresponds to the IP 110

is the interface GigabitEthernet0/1

!

!

!

control plan

!

!

exec banner ^ C ^ C

connection of the banner ^ C ^ C

Banner motd ^ C ^ C

!

Line con 0

local connection

line to 0

line 2

no activation-character

No exec

preferred no transport

transport of entry all

transport output pad rlogin lapb - your MOP v120 udptn ssh telnet

StopBits 1

line vty 0 4

access-class 23 in

privilege level 15

local connection

transport input telnet ssh

line vty 5 15

access-class 23 in

privilege level 15

local connection

transport input telnet ssh

!

Scheduler allocate 20000 1000

end

So far so good, I have check the transactions of NAT:

ROUTER1 #show ip nat trans

Inside global internal local outside global local outdoor Pro

TCP 200.122.102.74:62114 192.168.0.1:62114 17.151.239.110:443 17.151.239.110:443

TCP 200.122.102.74:62119 192.168.0.1:62119 17.172.233.134:5223 17.172.233.134:5223

TCP 200.122.102.74:34945 192.168.0.2:34945 181.30.241.103:443 181.30.241.103:443

TCP 200.122.102.74:37444 192.168.0.2:37444 173.194.42.230:443 173.194.42.230:443

TCP 200.122.102.74:37695 192.168.0.2:37695 181.30.241.109:80 181.30.241.109:80

TCP 200.122.102.74:40662 192.168.0.2:40662 173.194.74.188:5228 173.194.74.188:5228

TCP 186.153.125.138:41426 192.168.0.2:41426 216.115.101.179:443 216.115.101.179:443

TCP 200.122.102.74:41484 192.168.0.2:41484 216.115.101.179:443 216.115.101.179:443

TCP 200.122.102.74:42381 192.168.0.2:42381 181.30.241.31:80 181.30.241.31:80

TCP 186.153.125.138:42553 192.168.0.2:42553 98.136.223.39:8996 98.136.223.39:8996

and I see they're going through the two connections.

Buuuuuuuuuuuuut, when I check the interfaces...

ROUTER1 #show int g0/0

GigabitEthernet0/0 is up, line protocol is up

Material is CN Gigabit Ethernet, the address is c464.1354.b8c0 (BIA c464.1354.b8c0

)

Description: Fibertel

The Internet address is 200.122.102.74/24

MTU 1500 bytes, BW 100000 Kbit/s, DLY 100 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

KeepAlive set (10 sec)

Full-Duplex, 100 Mbps, media type is RJ45

control output stream is XON, control of input stream is XON

Type of the ARP: ARPA, ARP Timeout 04:00

Last entry of 00:00:00, 00:00:00 exit, exit hang never

Final cleaning of "show interface" counters never

Input queue: 0/75/0/0 (size/max/drops/dumps); Total output drops: 0

Strategy of queues: fifo

Output queue: 0/40 (size/max)

5 minute input rate 774000 bps, 161 packets/s

5 minute output rate 423000 bps, 102 packets/s

2133521 package, 1223904205 bytes, 0 no buffer entry

Received 615778 broadcasts (0 of IP multicasts)

0 Runts, 0 giants, 0 shifters

entry 0, 0 CRC errors, frame 0, saturation 0, 0 ignored

Watchdog 0, multicast 0, break 0 comments

1065308 packets output, 214203455 bytes, 0 underruns

0 output errors, 0 collisions, 1 interface resets

unknown protocol 0 drops

0 babbles, collision end 0, 0 deferred

1 lost carrier, 0 no carrier, interrupt the output of 0

output buffer, the output buffers 0 permuted 0 failures

ROUTER1 #show int g0/1

GigabitEthernet0/1 is up, line protocol is up

Material is CN Gigabit Ethernet, the address is c464.1354.b8c1 (BIA c464.1354.b8c1

)

Description: arnet

The Internet address is 186.153.125.138/29

MTU 1500 bytes, BW 100000 Kbit/s, DLY 100 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

KeepAlive set (10 sec)

Full-Duplex, 100 Mbps, media type is RJ45

control output stream is XON, control of input stream is XON

Type of the ARP: ARPA, ARP Timeout 04:00

Last entry 00:04:01, 00:00:06 exit, exit hang never

Final cleaning of "show interface" counters never

Input queue: 0/75/0/0 (size/max/drops/dumps); Total output drops: 0

Strategy of queues: fifo

Output queue: 0/40 (size/max)

5 minute input rate 0 bps, 0 packets/s

5 minute output rate 0 bps, 0 packets/s

208948 packages, 153515983 bytes, 0 no buffer entry

Received 1236 broadcasts (0 of IP multicasts)

0 Runts, 0 giants, 0 shifters

entry 0, 0 CRC errors, frame 0, saturation 0, 0 ignored

Watchdog 0, multicast 0, break 0 comments

190283 packets output, 45657373 bytes, 0 underruns

0 output errors, 0 collisions, 0 resets interface

unknown protocol 0 drops

0 babbles, collision end 0, 0 deferred

carrier, 0 no carrier, lost 0 0 interrupt output

output buffer, the output buffers 0 permuted 0 failures

Everything happens through G0/0 and nothing in G0/1!

Any ideas on why this is happening?

Thank you in advance for your help!

Kind regards

Alan

Hello

Yes here you only have a single default route installed (one from the DHCP server) so it can't NAT on the other interface as it can route on this one.

Change your configuration like this:

no ip route 0.0.0.0 0.0.0.0 track GigabitEthernet0/0 123

no ip route 0.0.0.0 0.0.0.0 200.122.102.1 254

IP route 0.0.0.0 0.0.0.0 dhcp

IP route 0.0.0.0 0.0.0.0 200.122.102.1 254

Now if you want to follow the first route look at this document:

http://www.Cisco.com/en/us/docs/iOS/dial/configuration/guide/dia_rel_stc_rtg_bckup.html#wp1065528

Concerning

Alain

Remember messages useful rate.

Static nat and NAT ACL 0

All,

I have nat 0 ACL indicating that an ip address should not be natted, while a static nat statement saying we need natted. I just want to know that we will have precedence.

Thank you

It is of the order of operations PIX nat / ASA.

the NAT 0 acl_name (nameif) has priority.

1 nat 0-list of access (free from nat)

2. match the existing xlates

3. match the static controls

a. static NAT with no access list

b. static PAT with no access list

4. match orders nat

a. nat [id] access-list (first match)

b. nat [id] [address] [mask] (best match)

i. If the ID is 0, create an xlate identity

II. use global pool for dynamic NAT

III. use global dynamic pool for PAT

Can I have load balancing for two ISP (PPPoE and PPPoA) on Cisco 897va connections

Hello

I have two ISP connection and I have Cisco router 897va, I want to have the load balancing for two ISP connection second connection is PPPoE connection and second is PPPOA (ATM) connection.

It is possible to do?

Thank you in advance.

You can balance by TCP (the default behavior with CEF enabled) stream. Alias a user turns off a pipe and the next user goes off the next pipe.

Make sure that you use the nat with route map that matchers the output interface, then you just need two routes of equal cost default (a leaver each circuit).

Static NAT problem with PIX501

Hi all

We have problems with our PIX firewall. We have configured PIX 501 with static NAT for our Web server. Here's the running configuration.

6.3 (4) version PIX

interface ethernet0 car

interface ethernet1 100full

ethernet0 nameif outside security0

nameif ethernet1 inside the security100

pixfirewall hostname

domain ciscopix.com

fixup protocol dns-length maximum 512

fixup protocol ftp 21

fixup protocol h323 h225 1720

fixup protocol h323 ras 1718-1719

fixup protocol http 80

fixup protocol rsh 514

fixup protocol rtsp 554

fixup protocol sip 5060

fixup protocol sip udp 5060

fixup protocol 2000 skinny

fixup protocol smtp 25

fixup protocol sqlnet 1521

fixup protocol tftp 69

names of

access-list 101 permit tcp any host x.x.x.26 eq www

access-list 101 permit tcp any host x.x.x.26 EQ field

access-list 101 permit udp any host x.x.x.26 EQ field

pager lines 24

Outside 1500 MTU

Within 1500 MTU

IP address outside x.x.x.28 255.255.255.248

IP address inside 192.168.90.1 255.255.255.0

alarm action IP verification of information

alarm action attack IP audit

location of PDM 192.168.90.0 255.255.255.0 inside

history of PDM activate

ARP timeout 14400

Global 1 interface (outside)

NAT (inside) 1 0.0.0.0 0.0.0.0 0 0

static (inside, outside) x.x.x.26 192.168.90.3 netmask 255.255.255.255 0 0

Access-group 101 in external interface

Route outside 0.0.0.0 0.0.0.0 x.x.x.25 1

Route inside 192.168.1.0 255.255.255.0 192.168.90.2 1

Timeout xlate 03:00

Timeout conn 01:00 half-closed 0:10:00 udp 0: CPP 02:00 0:10:00 01:00 h225

H323 timeout 0:05:00 mgcp 0: sip from 05:00 0:30:00 sip_media 0:02:00

Timeout, uauth 0:05:00 absolute

GANYMEDE + Protocol Ganymede + AAA-server

AAA-server GANYMEDE + 3 max-failed-attempts

AAA-server GANYMEDE + deadtime 10

RADIUS Protocol RADIUS AAA server

AAA-server RADIUS 3 max-failed-attempts

AAA-RADIUS deadtime 10 Server

AAA-server local LOCAL Protocol

Enable http server

http 192.168.90.0 255.255.255.0 inside

No snmp server location

No snmp Server contact

SNMP-Server Community public

No trap to activate snmp Server

enable floodguard

Telnet timeout 5

SSH timeout 5

Console timeout 0

Terminal width 80

: end

the problem is the configuration, we are unable to access the web server both inside and outside the network.

All input will be greatly appreciated.

Kind regards

udimpas

activate icmp backtrace and then ping the x.x.x.26 of the internet. the output should be as below:

3363574:-out ICMP echo request: ID = 21834 seq = 1202 length = 80

3363575: ICMP echo request: external untranslating: inside: 192.168.90.3

3363576: ICMP echo-reply from the inside: 192.168.90.3 ID = 21834 seq = 1202 length = 80

3363577: response to ICMP echo -: translate inside: 192.168.90.3 out:

by doing this, you can 1. Check the nat 2. If the server responds to the internet.

do not forget to allow incoming icmp:

access-l 101 permit icmp any one

Two static NAT/PAT instructions

Hello

I have a PIX 515 running PIX OS 7.0, and I have a server behind the PIX with a static translation entry.

I was invited as a remote site must connect to the SQL service running on this computer, but the site connects to a non Standard-SQL TCP port, so I thought that I can use a static PAT (port forwarding), but I wonder... can I keep the existing static NAT and add the static PAT? !!! Furthermore, the rest of the remote sites will connect to the same SQL service on the standard port and there are more services running on the server that will be accessible from the outside.

The server is online, so I won't add the static PAT before you make sure that it will run smoothly...

Thnx, Salem.

Hi Salem,

First, I entered this static NAT command:

static (inside, outside) 1.2.3.4 10.0.0.1 netmask 255.255.255.255

This static PAT order tracking:

static (inside, outside) tcp 1.2.3.4 http 10.0.0.1 netmask 255.255.255.255 http

and got this error message:

ERROR: mapped address conflict with existing static

This suggests that it is not possible.

Kind regards

Tom

Windows 2008 network load balancing

I hope someone can help.
I'm looking to start to test the Windows 2008 network load balancing. This will serve a webfarm. I went through various whitepapers, and forum messages but who have a few more questions:
1. I get VMWare recommends multicast. Windows 2008 gives you two options, multicast and IGMP multicast. Seeing that I'm not an expert in network management, I'm a little nervous about the switched. Apparently to enable IGMP Snooping on your Cisco switches eliminate this? Is this true, if so you need install your cluster as IGMP Mulicast?
2 do you need to have dedicated NICs for the NLB cluster, separate vSwitch etc.? If this is not the case, there will be interference with the existing production network?
3 is a necessary static arp entry on your switch? All switches or just the farm goes where the ESX hosts are connected to?
Some info would be appreciated.

1 have not tested, but IGMP snooping is what caused problems before because the switch ports would not join the group correctly, so it is suitable to test whether the OS is ready to send packets.

2. it is better to use separate vNIC to the virtual IP address of the NLB cluster

3 static arp would be necessary if the IGMP snooping does not work for the switch ports that will be the virtual machine hosts that are part of the NLB cluster.

-KjB

PIX + Rotary static NAT to load balance?

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