Redirect Port RV042 bypassing ACL

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• based on the redirection port has stopped working after the upgrade of Capitan 10.11.3

  I have a web service running on a VM (virtualbox VM), which I can access on my mac via 192.168.99.100:8000. The mac itself is tuned to 192.168.1.2. To port 8000, I set up a redirect on the server (Server version 5.0.15 OSX) Web sites pointing to 192.168.99.100:8000. It works, as long as the conscripts of the Mac (even when called from another virtual machine on this mac).

  However, redirection fails when you try to access from other computers within the 192.168.x.y space, or when it is called from the internet.

  ... I add a few comments on what has been checked so far:

  -port 8000 is open to the router

  -OSX El Capitan (10.11.3) firewall application is disabled in system preferences

  -OSX Firewall adaptive server is disabled (using sudo /Applications/Server.app/Contents/ServerRoot/usr/libexec/afctl - X)

  -by checking port 8000 canyouseeme.org it is recognized as open

  ... still, the request never machine made...

• WRT320N - loss of internet connection after redirect port 80 and 443

  Hello

  I have a problem with my new WRT320N. When I activate the port forwarding on my local server (ports 80 and 443), after a while I completely lose internet connection on all my computers connected to the router (wifi and lan computers). The router itself can ping and trace any Internet site through diagnostics to Web administration. When I turn off and click on save changes button, my internet connection works immediately again. I have the latest firmware installed and I tried to reset the router several times and set it manually since the beginning.

  My previously detained WRP400 has been configured to redirect these exactly the same ports and everything worked perfectly. Could someone advise me where could be a mistake? Thank you.

  I solved it. There was a problem with the combination of the service 'DHCP Reservation"of the router and client DHCP of Ubuntu. I disabled "Booking DHCP" and set the IP settings manually in the Ubuntu computer and now it works perfectly

• Help to port RV042 forwarding

  Hi and thanks for reading this. My VPN router works well but I just need to make sure that port 8443 is forwarded so that my customers from outside my office/domain can access my Web server to generate reports. I have already connected to my router and entered my IP address of the web server with the port enabled in the port forwarding section range. It is said: secondary https [tcp/8443 ~ 8443]-> 192.168.xx.x

  It is activated and I saved the day. Everyone in my office and the server can display this site very well but can my clients outdoors. What gives? I really try hard to understand but I have developed with nothing. Any help is greatly appreciated.

  Hi niospecv and welcome to the homepage of Cisco community!

  The RV042 now reports to the Cisco Small Business Support Community.

  For discussions concerning this product, please go here.

• More ports numbers in ACL taking AAGR more?

  Hello

  If I use the permit tcp any any eq 1 8 10 15 instead of below:

  permit tcp any any eq 1

  permit tcp any any eq 8

  permit tcp any any eq 10

  permit tcp any any eq 15

  With the help of all the port in the same line numbers will use more ACL AAGR? According to my understanding, if we define a range to an ACL line, which would reserve a portion of the AAGR for this range, but there is no if booked AAGR, we define a single port as in permit tcp any any eq 1.

  Then, will be permit tcp any any eq 1 8 10 15 be also part of the AAGR just like using " " 1-4range "" and I have to take into account the use of resources while using this?

  Hi Vivek,

  I see. Well, honestly, I don't know for you. These questions are extremely specific to the platform, and each router platform and switch supporting ACL can implement these things differently.

  A note: I see you are using a router ISR G2 3945. These devices, to my knowledge, do not have an AAGR and that they do not become ACL in a hardware dedicated. SRI (x 800) and routers ISR G2 (x 900) are software-based and ACL is processed on the CPU. Specifically on these platforms, there is no need to worry about the use of the AAGR - because there is no AAGR there at all.

  Best regards
  Peter

• Port / vlan without ACLs

  On a port or vlan has no need of the acl filtering is more effective to have nothing or only allow an ip?  I understand that there is a value default implicit deny ip any one to block whatever it is not allowed in a statement of permit to proceed, but I guess that this applies only if an acl is attributed so I think that if you just allow a whole ip in an acl with out all deny before he better not waste time processor running through a filter acl packets Since there is nothing to reject anyway i.

  Hello Vini, if I interpret correctly, there is no need of an access list as there just no need system resources.

  -Tom
  Please mark replied messages useful

• Redirection port using two WAN 1 and 2.

  Dear,

  Currently I'm working in a dual WAN RV042 router set up, it is configured to accept connections on the number of ports like 80 443, 25, and before them to a local ip address.

  The problem is that only works with WAN1.

  It is even possible to transfer ports for connections coming WAN2?

  Kind regards

  Muhannad

  Hi Muhannand, the confusion seems obvious. When you use a WAN 2 connection with load balancing, OUTGOING connections will share on each WAN traffic. If you use the smartlink backup, only the primary WAN is active up to the failure of this connection.

  For port forwarding, if you want an incoming connection for WAN 2 at the same time then you will need to use load balancing mode.

  Now, if you have the complication that you need a specific service such as HTTPS (443) expire so it is when you use the binding protocol to force an OUTGOING connection on 1 WAN port.

  -Tom
  Please mark replied messages useful

• LRT224 redirection port internal port different external

  Port forwarding seems to work flawlessly - but I need to route allows you to say external port 940 to internal port 1005.

  On most routers, you choose this in the "service" module or the module "port forward" - but I can't seem to find anything to indicate that the IP address is internal.

  How to do this?

  / Ulrik

  Click management services under Configuration > Configuration > Port Address Translation.

• Redirect Port WRV210 not open ports

  Greetings,

  I have a Linksys/Cisco WRV210 Wireless-G VPN Router with RangeBooster.  ISP is a dynamic IP with all ports open.  I have no equipment to interact with them. they give me just a CAT5 cable on the wall.  ISP-> WRV210-> LAN

  Router stats

  Hardware Version: WRTR-221G_V1

  Software version: 2.0.0.11

  Connection type: Automatic Configuration - DHCP

  IP address: 10.1.222.104

  Subnet mask: 255.255.255.0

  Default gateway: 10.1.222.1

  Port Forwarding 22152 - 22152 192.168.1.152 enabled

  No trigger port

  DMZ disabled

  If I am controlled within the local network

  nmap -p22152 192.168.1.152Interesting ports on 192.168.1.152:PORT      STATE SERVICE22152/tcp open  unknown
  

  If I am controlled from outside the router (xxx and # are just my changes of masking)

  nmap -p22152 desktop.dns.xxx
  Interesting ports on ##.###.##.###:
  PORT      STATE  SERVICE
  22152/tcp closed unknown
  

  If I am controlled from inside the LAN on the router

  nmap -p22152 192.168.1.1
  Interesting ports on 192.168.1.1:
  PORT      STATE  SERVICE
  22152/tcp closed unknown
  

  It seems that the router is completely ignoring my Port Forwarding instructions.  I have the hard reset of the router.  I've upgraded to the latest firmware.  None of them has made a difference.

  My final test was to see if all ports are open on the router

  nmap 192.168.1.1
  Interesting ports on 192.168.1.1:
  Not shown: 997 closed ports
  PORT      STATE SERVICE
  80/tcp    open  http
  443/tcp   open  https
  60443/tcp open  unknown
  

  My questikon would be if someone has a 'trick' to enable port forwarding on the road?

  Thank you.

  This product is managed by the Cisco Small Business Support Community.

  For future discussions about this product, go here.

• WRT160N redirection port uninvited?

  I have a WRT160N v3 where I haven't activated port forwarding rules. When running utorrent on one of my computers on the network, I was surprised that he was able to accept incoming connections from the internet. How is that possible? In fact, after I put another pc to be the dmz server in the network, utorrent was still able to get incoming connections from the internet when running on the first pc. Am I missing something here?

  UPnP is enabled? It can allow internal applications such as automatic port forwarding torrent clients...

• Redirect Ports problem

  I have a WRT54GS router and I'm trying to forward ports. When I'm the screen forward port on the router, I enter in the ports, try to click on the "Activate" box and get the following message:

  'You cannot use the IP of the router, the network or the Boroadcast address' and therefore, they don' tregister/save.

  No idea why this is?

  Thank you

  Dave

  So much worse... got it! Thank you!!

• Redirect port on the router Cisco 881 can following the active WAN Interface

  Hello

  Is there a way to make the port Fowarding after the Active Wan Interface?

  In this case the port Fowarding only works when the interface is active is GigabitEthernet0/0

  Bureau3616 (config) # ip nat inside source tcp static 192.168.2.xxx 3389 interface GigabitEthernet0/0 3387

  If our ISP-1 failure on WAN-1 Interface GigabitEthernet0/0 switch to internet access automatically to ISP - 2 WAN-2 on GigabitEthernet0/1 but the port forwarding does not work because it is fixed to the other interface only and I is not the way to port forwarding follow the WAN an actress.

  Let me know please if anyone has an idea.

  It is a part of my config

  ! NAT configuration

  Bureau3616 (config) # ip nat inside source map route NAT-WAN1 interface GigabitEthernet0/0 overload

  Bureau3616 (config) # ip nat inside source map route NAT-WAN2 interface GigabitEthernet0/1 overload

  Bureau3616 (config) # NAT-WAN1 allowed 10 route map

  Ip address of Bureau3616 (config-route-map) # match 100

  Bureau3616 (config-route-map) # match interface GigabitEthernet0/0

  Bureau3616 (config-route-map) #exit

  Bureau3616 (config) # NAT-WAN2 allowed 10 route map

  Ip address of Bureau3616 (config-route-map) # match 100

  Bureau3616 (config-route-map) # match interface GigabitEthernet0/1

  Bureau3616 (config-route-map) #exit

  ! Port Fowarding configuration

  Bureau3616 (config) #ip avant-protocole nd

  Bureau3616 (config) # ip nat inside source tcp static 192.168.2.xxx 3389 interface GigabitEthernet0/1 3387

  Thank you!

  You can, but you can't use transfer based on the interface of the to do. It should be based on the address itself. It's fine if you have static addresses or reserved on your WAN interfaces, but pose a problem if the addresses are dynamic:

  ip nat inside source static tcp 192.168.2.x 3389 1.1.1.1 3389 route-map NAT-WAN1ip nat inside source static tcp 192.168.2.x 3389 2.2.2.2 3389 route-map NAT-WAN2

  Replace the address of your interface WAN1 and 2.2.2.2 with the address of your 1.1.1.1 WAN2 interface. Applying the road maps will work pretty much the same way as it does with your statements of overload. Each transmission NAT rule applies only to the traffic corresponding to rules of the road map.

• RV042 VPN group & access rules

  I have install a GroupVPN and connect to the RV042 with the client VPN Shrewsoft, works like a charm as opposed to QuickVPN ;-)

  The firewall is configured with an explicit deny for RDP access rule to an internal server, can also be used to explicitly a rule is created for certain numbers of IP as a source. I noticed that I need to create an explicit allow rule for the subnet of the client Shrewsoft is using the virtual adapter or I won't be able to access the internal server via RDP through the tunnel of GroupVPN.

  Is it normal? I think that establishing a tunnel defies the rules created for a direct access to the WAN port.

  Peter

  Sorry, I got my signals crossed with my previous suggestion.  Your answer has cleared up my misunderstanding.  My rule was for a different purpose and it does not work for your situation, I thought it would be.

  redirect port (UPnP or redirection) replaced the firewall rules, but does not completely bypass their. He must work around the default rules for work, but don't not past rules customized.  The trick is to know the translation of transfer goes first, then when it is processed by the firewall, the destination is the IP and the port internal.  In addition, it would seem that VPN works the same way - allows to bypass default firewall but not custom rules.

  Since you want to double your security and have a non-standard port MORE limit access to specific IPs through the rules of firewall, then you are set up correctly.

  The VPN to bypass the firewall completely?   Maybe, but then you wouldn't have the opportunity to clients VPN filter with custom (without a separate section in Firewall VPN) rules.  Given that you have created a custom block rule, you must add an allow rule for everything that comes through the WAN (same VPN) port.   I agree it's annoying, but that's just the way the program is written.

  I didn't test the VPN rules, but I think you can handle this - the only variable would be you allow the public IP address of the remote network or remote LAN subnet range?  I expect the LAN subnet.

  ----------------------

  Other thoughts - I personally just use the non-standard port and leave the RDP Security to take care of himself.  My clients are very small, so the exposure and risk are fairly low.  For a client of profile higher or more secure, I would either put everything inside a VPN connection, or configure as you.  Of course, if the security is so important, maybe you should be on a more expensive (and capable) device?

• list dACL on the open with pre authorization ACL mode switches

  Hi on board,

  This topic is perhaps correct in the switching section of the Board of Directors as well, but I'll try it here.

  Suppose I use authentication open on a switch port with a pre authentication ACL. Call the PORT-PRE-AUTH-ACL

  Preauthentication ACL contains the usual stuff like PXE, DHCP, DNS and so forth (Yes, we want to do profiling :))

  Now the customer behind the port is sucessfully authorized, and a DACL is applied to the session. The IP device followed by magic jumps and adds the IP address of the real connected customer in the part of the source of the ACL.

  Now the question: what happens with the content of the PORT-PRE-AUTH-ACL on the switch port?

  • ACL preauthentication is happy for the session?
  • The ACL are concatenated? Pre static permission ACL comes first, and the contents of the DACL comes after that?
  • The ACL are concatenated? The content of the DACL comes first and the pre authorization ACL static comes after that?

  I think the answer to this question is: it depends - right?

  From my point of view, it is highly platform and SW version dependent. Do you agree? I also think that the documentation is very poor in this particular case.

  For example on a 2960-X and 2960-S with IBNS2.0 config style 15.2 code running, the behavior is that the

  content of the DACL is placed above the static port ACL. But the static port ACL remains in place.

  Why I ask this question?

  • This is relevant when placing explicit deny statements somewhere in the port or list dACL
  • Resource AAGR economy on the switch. For example if I have enabled DHCP in the pre-auth-ACL, I must not let DHCP in the DACL if ACLs are concatenated. That's why I less entered ACE--> economy of the AAGR resources on the switch.

  Maybe it's a good idea if we assemble a list of "field experience". I begin with two devices from above:

  Platform	Version	Behavior	Remarks
  Cat no. 2960 X	15.2 (4)	Concat: list dACL then ACL port	IBNS2
  Cat no. 2960S	15.2 (2)	Concat: list dACL then ACL port	IBNS2
  Cat no. 4500 Sup8	3.7.0E	Concat: list dACL then ACL port	Last update 03/2016/31 NicolasDemonty (thank you)
  Cat no. 6800	15.2 (1) SY2	Concat: list dACL then ACL port	Update 08/2016/26 by jcockburn (thank you)

  Someone has Cat6k (ok - it is difficult with IBNS2.0 on this platform), Cat4k, Cat3k?

  Hello

  We have 6500's on IBNS1 and 6880's on IBNS2

  The same thing about the DACL and the PACLs...

  dACL is concat'ed on top of PACL.

  One thing to note, we have a posture or clean-up phase which redirects the client to the portal as well and when we migrated to IBNS2 we found different implementations.

  IBNS1 = list dACL, RACL + PACL

  IBNS2 = list dACL, RACL + PACL

  so if for some reason, you had a refusal not in the DACL the RACL will never matched... suffice to say.

• Windows failed to update for HP - Bus USB and Ports, display controllers - HP w2408 widescreen LCD

  I have a new HP M9402 desktop with monitor Hp W2408 Summit.  I get a message to update windows for HP - Bus USB and Ports, display controllers - ACL from HP w2408 widescreen, but the windows download always fails.  I tried several times to download this update.

  Any help would be greatly appreciated.

  Hi all

  The solution to my problem of not being able to make updates to the window was to spend in an HDMI instead of VGA cable.

  BR / / JJG