[Solved] RV082 - SRP527W site-to-site VPN - routing table?

Hello

I am trying to create a VPN IPSEC link between 2 offices. The VPN connection is created, and I can connect but only one way.

Customers in the Office B seems to have a routing problem. Can you help me?

Details :

Office:

-Router SRP527W.

-Network client: 192.168.0.0 / 24

-Internal address: 192.168.0.254 / 24

B office:

-RV082 router (behind another router)

-Network client: 192.168.6.0 / 24

-Internal address: 192.168.6.253 / 24

-Internal address that goes to the Router 1: 192.168.5.253

internal address of the Router - 1: 192.168.5.254

Page layout:

Office---> SRP527W---> INTERNET<----- global="" router=""><------ rv082="">< office="">

192.168.0.254 192.168.5.254 5,253 6.254

Details VPN:

Office:

-remote type SUBNET = 192.168.6.0 group / 24

-local group = SUBNET 192.168.0.0/24

-Address ID = 82.127.XXX.XXX

B office:

-remote type = SUBNET 192.168.0.0/24 Group

-local group = SUBNET 192.168.6.0 / 24

-IP address = 192.168.5.253 (accessed from the Internet through the 1st router with the IP 37.1.XXX.XXX)

Facts:

A desktop, I can ping everything in 6.0 addresses.

Office B, I cannot ping anything in 0.0 subnet addresses. The router itself with the diagnostic page, works of ping 192.168.0.1? But no other ping. Curious...

The desktop computer B routing table shows the following:

Active routes:

Destination network mask network Adr. Gateway Adr. interface metric

0.0.0.0 0.0.0.0 192.168.6.253 192.168.6.10 10

127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1

192.168.6.0 255.255.255.0 192.168.6.10 192.168.6.10 10

192.168.6.10 255.255.255.255 127.0.0.1 127.0.0.1 10

192.168.6.255 255.255.255.255 192.168.6.10 192.168.6.10 10

224.0.0.0 240.0.0.0 192.168.6.10 192.168.6.10 10

255.255.255.255 255.255.255.255 192.168.6.10 192.168.6.10 1

255.255.255.255 255.255.255.255 192.168.6.10 3 1

255.255.255.255 255.255.255.255 192.168.6.10 1 40005

Default gateway: 192.168.6.253

===========================================================================

Persistent routes:

None

Tracert from computers to Office B shows that the packages have arrived at 192.168.6.253, and then it never achieved anything.

The problem is related to the architecture of Office B?

See the files attached to a layout of Office B and the routing of the router table to Office B.

Thank you.

Enable NAT - T on the RPS and configure the remote ID as 192.168.5.253 in the IKE policy.

Not sure about the RV and if supporting NAT - T.  It can automatically detect the NAT - T, or need to be configured (in this case, you configure the local identification)

Andy.

Tags: Cisco Support

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    ETH0 1 ipsec-isakmp crypto map

    set peer x

    Set transform-set 1cisco

    PFS group2 Set

    match address 180

    card ETH0 10-isakmp ipsec crypto dynamic dynmap

    !

    !

    interface FastEthernet0/1

    Description $ES_WAN$

    card crypto ETH0

    !

    IP local pool vpnclientpool 192.168.200.100 192.168.200.150

    !

    !

    overload of IP nat inside source list LOCAL interface FastEthernet0/1

    !

    IP access-list extended LOCAL

    deny ip 192.168.7.0 0.0.0.255 192.168.1.0 0.0.0.255

    deny ip 192.168.7.0 0.0.0.255 192.168.200.0 0.0.0.255

    IP 192.168.7.0 allow 0.0.0.255 any

    !

    access-list 180 allow ip 192.168.7.0 0.0.0.255 192.168.1.0 0.0.0.255

    access-list 190 allow ip 192.168.7.0 0.0.0.255 192.168.200.0 0.0.0.255

    !

    How the DLINK has been configured for traffic between the site to site VPN subnets? You are able to add multiple remote subnets on DLINK? If you can, then you must add the pool of Client VPN subnet.

    Alternatively, if you cannot add multiple subnet on DLINK router, you can change the pool of Client VPN 192.168.6.0/24, and on the crypto ACL between the site to site VPN, you must edit the 180 existing ACL

    DE:

    access-list 180 allow ip 192.168.7.0 0.0.0.255 192.168.1.0 0.0.0.255

    access-list 180 allow ip 192.168.200.0 0.0.0.255 192.168.1.0 0.0.0.255

    TO:

    access-list 180 allow ip 192.168.6.0 0.0.1.255 192.168.1.0 0.0.0.255

    Also change the ACL 190 split tunnel:

    DE:

    access-list 190 allow ip 192.168.7.0 0.0.0.255 192.168.200.0 0.0.0.255

    access-list 190 allow ip 192.168.1.0 0.0.0.255 192.168.200.0 0.0.0.255

    TO:

    access-list 190 allow ip 192.168.7.0 0.0.0.255 192.168.6.0 0.0.0.255

    access-list 190 allow ip 192.168.1.0 0.0.0.255 192.168.6.0 0.0.0.255

    Finally, replace the remote subnet 192.168.7.0/255.255.255.0 192.168.6.0/255.255.254.0 DLINK.

    Hope that helps.

  • A Site VPN PIX501 and CISCO router

    Hello Experts,

    I have an at home test lab, I set up a site to site vpn using a router Cisco PIX501 and CISCO2691, for configurations, I have just a few links on the internet, because my background on VPN configuration is not too good, for the configuration of routers, I followed this link:

    www.Firewall.CX/Cisco-Technical-Knowledgebase/Cisco-Routers/867-Cisco-ro...

    and for configuring pIX I just use the VPN Wizard of pix. All confgurations but ping failed. Hope you can help me with this, don't know what to do here (troubleshooting).

    Joint here is the configuration of my router, topology, as well as the pix configuration. Hope you can help me with this. Thanks in advance.

    Hi Mark,

    I went in the Config of the ASA

    I see that the dispensation of Nat is stil missing there

    Please add the following

    access-list allowed sheep ip 192.168.1.0 255.255.255.0 172.21.1.0 255.255.255.0

    inside NAT) 0 access-list sheep

    Then try it should work

    Thank you

    REDA

  • Routing multiple subnets on a site to site VPN

    What is the recommended solution to deliver several subnets on a site to site vpn? Each subnet requires its own policy or a policy can be used for one or more subnets if the remote site has several subnets? In addition, if the remote router has only two fastethernet interfaces, it'll work if one of the interfaces of subinterface configuration or router on a stick?

    If you talk about static routing, you can simply add the routes and change the ACL for encrypted as a result traffic.

    If you want to run a dynamic routing. you will then need to IPSEC VTI.  Here is the link

    http://www.Cisco.com/en/us/docs/iOS/12_3t/12_3t14/feature/guide/gtIPSctm.html#wp1063136

    and although I did not use of subinterfaces for IPSEC VTI. but according to me, it will work.

  • Traffic of Client VPN routing via VPN Site to Site

    Hello

    We have the following scenario:

    • Office (192.168.2.x)
    • Data Center (212.64.x.x)
    • Home workers (192.168.2.x) (scope DHCP is in the office subnet)

    Connections:

    • Desktop to Data Center traffic is routed through a Site at IPSec VPN, which works very well.
    • Welcome to the office is routed through a Site IPSec VPN Client.

    The question we have right now, is the Client VPN works, and we have implemented a split tunnel which includes only the subnet of the Office for a list of network.

    What I have to do, is to route all traffic to home' to 'Data Center' by site to Site VPN is configured.

    I tried to add the ranges of IP data center to the list of Client VPN Split tunnel, but when I do that and try to connect at home, I just get a "connection timed out" or denied, as if she was protected by a firewall?

    Could you please let me know what I missed?

    Result of the command: "show running-config"

    : Saved

    :

    ASA Version 8.2(5)

    !

    hostname ciscoasa

    domain-name skiddle.internal

    enable password xxx encrypted

    passwd xxx encrypted

    names

    name 188.39.51.101 dev.skiddle.com description Dev External

    name 192.168.2.201 dev.skiddle.internal description Internal Dev server

    name 164.177.128.202 www-1.skiddle.com description Skiddle web server

    name 192.168.2.200 Newserver

    name 217.150.106.82 Holly

    !

    interface Ethernet0/0

    switchport access vlan 2

    !

    interface Ethernet0/1

    !

    interface Ethernet0/2

    !

    interface Ethernet0/3

    shutdown

    !

    interface Ethernet0/4

    shutdown

    !

    interface Ethernet0/5

    shutdown

    !

    interface Ethernet0/6

    shutdown

    !

    interface Ethernet0/7

    shutdown

    !

    interface Vlan1

    nameif inside

    security-level 100

    ip address 192.168.2.254 255.255.255.0

    !

    interface Vlan2

    nameif outside

    security-level 0

    ip address 192.168.3.250 255.255.255.0

    !

    !

    time-range Workingtime

    periodic weekdays 9:00 to 18:00

    !

    ftp mode passive

    clock timezone GMT/BST 0

    clock summer-time GMT/BDT recurring last Sun Mar 1:00 last Sun Oct 2:00

    dns domain-lookup inside

    dns server-group DefaultDNS

    name-server Newserver

    domain-name skiddle.internal

    same-security-traffic permit inter-interface

    object-group service Mysql tcp

    port-object eq 3306

    object-group protocol TCPUDP

    protocol-object udp

    protocol-object tcp

    object-group network rackspace-public-ips

    description Rackspace Public IPs

    network-object 164.177.132.16 255.255.255.252

    network-object 164.177.132.72 255.255.255.252

    network-object 212.64.147.184 255.255.255.248

    network-object 164.177.128.200 255.255.255.252

    object-group network Cuervo

    description Test access for cuervo

    network-object host Holly

    object-group service DM_INLINE_TCP_1 tcp

    port-object eq www

    port-object eq https

    object-group service DM_INLINE_TCP_2 tcp

    port-object eq www

    port-object eq https

    object-group service DM_INLINE_TCP_3 tcp

    port-object eq www

    port-object eq https

    object-group service DM_INLINE_TCP_4 tcp

    port-object eq www

    port-object eq https

    access-list inside_access_in extended permit ip any any

    access-list outside_access_in remark ENABLES Watermark Wifi ACCESS TO DEV SERVER!

    access-list outside_access_in extended permit tcp 188.39.51.0 255.255.255.0 interface outside object-group DM_INLINE_TCP_4 time-range Workingtime

    access-list outside_access_in remark ENABLES OUTSDIE ACCESS TO DEV SERVER!

    access-list outside_access_in extended permit tcp any interface outside object-group DM_INLINE_TCP_3

    access-list outside_access_in remark Public Skiddle Network > Dev server

    access-list outside_access_in extended permit tcp 192.168.3.0 255.255.255.0 interface outside eq www

    access-list outside_access_in extended permit tcp object-group rackspace-public-ips interface outside eq ssh

    access-list outside_access_in remark OUTSIDE ACCESS TO DEV SERVER

    access-list outside_access_in extended permit tcp object-group Cuervo interface outside object-group DM_INLINE_TCP_1 inactive

    access-list outside_access_in extended permit tcp 192.168.3.0 255.255.255.0 host dev.skiddle.internal object-group DM_INLINE_TCP_2 inactive

    access-list inside_access_in_1 remark HTTP OUT

    access-list inside_access_in_1 extended permit tcp any any eq www

    access-list inside_access_in_1 remark HTTPS OUT

    access-list inside_access_in_1 extended permit tcp any any eq https

    access-list inside_access_in_1 remark SSH OUT

    access-list inside_access_in_1 extended permit tcp any any eq ssh

    access-list inside_access_in_1 remark MYSQL OUT

    access-list inside_access_in_1 extended permit tcp any host 164.177.128.200 object-group Mysql

    access-list inside_access_in_1 remark SPHINX OUT

    access-list inside_access_in_1 extended permit tcp any host 164.177.128.200 eq 3312

    access-list inside_access_in_1 remark DNS OUT

    access-list inside_access_in_1 extended permit object-group TCPUDP host Newserver any eq domain

    access-list inside_access_in_1 remark PING OUT

    access-list inside_access_in_1 extended permit icmp any any

    access-list inside_access_in_1 remark Draytek Admin

    access-list inside_access_in_1 extended permit tcp any 192.168.3.0 255.255.255.0 eq 4433

    access-list inside_access_in_1 remark Phone System

    access-list inside_access_in_1 extended permit tcp any 192.168.3.0 255.255.255.0 eq 35300 log disable

    access-list inside_access_in_1 remark IPSEC VPN OUT

    access-list inside_access_in_1 extended permit udp any host 94.236.41.227 eq 4500

    access-list inside_access_in_1 remark IPSEC VPN OUT

    access-list inside_access_in_1 extended permit udp any host 94.236.41.227 eq isakmp

    access-list inside_access_in_1 remark Office to Rackspace OUT

    access-list inside_access_in_1 extended permit ip 192.168.2.0 255.255.255.0 object-group rackspace-public-ips

    access-list inside_access_in_1 remark IMAP OUT

    access-list inside_access_in_1 extended permit tcp any any eq imap4

    access-list inside_access_in_1 remark FTP OUT

    access-list inside_access_in_1 extended permit tcp any any eq ftp

    access-list inside_access_in_1 remark FTP DATA out

    access-list inside_access_in_1 extended permit tcp any any eq ftp-data

    access-list inside_access_in_1 remark SMTP Out

    access-list inside_access_in_1 extended permit tcp any any eq smtp

    access-list outside_1_cryptomap extended permit ip 192.168.2.0 255.255.255.0 object-group rackspace-public-ips

    access-list inside_nat0_outbound extended permit ip 192.168.2.0 255.255.255.0 192.168.100.0 255.255.255.0

    access-list inside_nat0_outbound extended permit ip 192.168.2.0 255.255.255.0 object-group rackspace-public-ips

    access-list inside_nat0_outbound extended permit ip any 192.168.2.128 255.255.255.224

    access-list inside_1_cryptomap extended permit ip 192.168.2.0 255.255.255.0 object-group rackspace-public-ips

    access-list outside_1_cryptomap_1 extended permit tcp 192.168.2.0 255.255.255.0 object-group rackspace-public-ips eq ssh

    access-list RACKSPACE-cryptomap_1 extended permit ip 192.168.2.0 255.255.255.0 object-group rackspace-public-ips

    access-list RACKSPACE-TEST extended permit ip host 94.236.41.227 any

    access-list RACKSPACE-TEST extended permit ip any host 94.236.41.227

    access-list InternalForClientVPNSplitTunnel remark Inside for VPN

    access-list InternalForClientVPNSplitTunnel standard permit 192.168.2.0 255.255.255.0

    access-list InternalForClientVPNSplitTunnel remark Rackspace

    access-list InternalForClientVPNSplitTunnel standard permit 164.177.128.200 255.255.255.252

    access-list InternalForClientVPNSplitTunnel remark Rackspace

    access-list InternalForClientVPNSplitTunnel standard permit 164.177.132.16 255.255.255.252

    access-list InternalForClientVPNSplitTunnel remark Rackspace

    access-list InternalForClientVPNSplitTunnel standard permit 164.177.132.72 255.255.255.252

    access-list InternalForClientVPNSplitTunnel remark Rackspace

    access-list InternalForClientVPNSplitTunnel standard permit 212.64.147.184 255.255.255.248

    pager lines 24

    logging enable

    logging console debugging

    logging monitor debugging

    logging buffered debugging

    logging trap debugging

    logging asdm warnings

    logging from-address [email protected]/* */

    logging recipient-address [email protected]/* */ level errors

    mtu inside 1500

    mtu outside 1500

    ip local pool CiscoVPNDHCPPool 192.168.2.130-192.168.2.149 mask 255.255.255.0

    ip verify reverse-path interface inside

    ip verify reverse-path interface outside

    ipv6 access-list inside_access_ipv6_in permit tcp any any eq www

    ipv6 access-list inside_access_ipv6_in permit tcp any any eq https

    ipv6 access-list inside_access_ipv6_in permit tcp any any eq ssh

    ipv6 access-list inside_access_ipv6_in permit icmp6 any any

    icmp unreachable rate-limit 1 burst-size 1

    icmp permit any outside

    no asdm history enable

    arp timeout 14400

    global (outside) 1 interface

    nat (inside) 0 access-list inside_nat0_outbound

    nat (inside) 1 0.0.0.0 0.0.0.0

    static (inside,outside) tcp interface www dev.skiddle.internal www netmask 255.255.255.255

    static (inside,outside) tcp interface ssh dev.skiddle.internal ssh netmask 255.255.255.255

    access-group inside_access_in in interface inside control-plane

    access-group inside_access_in_1 in interface inside

    access-group inside_access_ipv6_in in interface inside

    access-group outside_access_in in interface outside

    route outside 0.0.0.0 0.0.0.0 192.168.3.254 10

    timeout xlate 3:00:00

    timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02

    timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00

    timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00

    timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute

    timeout tcp-proxy-reassembly 0:01:00

    timeout floating-conn 0:00:00

    dynamic-access-policy-record DfltAccessPolicy

    aaa authentication telnet console LOCAL

    aaa authentication enable console LOCAL

    http server enable 4433

    http 192.168.1.0 255.255.255.0 inside

    http 192.168.2.0 255.255.255.0 inside

    no snmp-server location

    no snmp-server contact

    snmp-server enable traps snmp authentication linkup linkdown coldstart

    crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac

    crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac

    crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac

    crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac

    crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac

    crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac

    crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac

    crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac

    crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac

    crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac

    crypto ipsec security-association lifetime seconds 86400

    crypto ipsec security-association lifetime kilobytes 4608000

    crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs group1

    crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA ESP-3DES-MD5 ESP-DES-SHA ESP-DES-MD5

    crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set security-association lifetime seconds 28800

    crypto map outside_map 1 match address RACKSPACE-cryptomap_1

    crypto map outside_map 1 set pfs

    crypto map outside_map 1 set peer 94.236.41.227

    crypto map outside_map 1 set transform-set ESP-AES-128-SHA

    crypto map outside_map 1 set security-association lifetime seconds 86400

    crypto map outside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP

    crypto map outside_map interface outside

    crypto ca trustpoint _SmartCallHome_ServerCA

    crl configure

    crypto ca certificate chain _SmartCallHome_ServerCA

    certificate ca xxx

    quit

    crypto isakmp enable outside

    crypto isakmp policy 10

    authentication crack

    encryption aes-256

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 20

    authentication rsa-sig

    encryption aes-256

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 30

    authentication pre-share

    encryption aes-256

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 40

    authentication crack

    encryption aes-192

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 50

    authentication rsa-sig

    encryption aes-192

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 60

    authentication pre-share

    encryption aes-192

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 70

    authentication crack

    encryption aes

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 80

    authentication rsa-sig

    encryption aes

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 90

    authentication pre-share

    encryption aes

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 100

    authentication crack

    encryption 3des

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 110

    authentication rsa-sig

    encryption 3des

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 120

    authentication pre-share

    encryption 3des

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 130

    authentication crack

    encryption des

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 140

    authentication rsa-sig

    encryption des

    hash sha

    group 2

    lifetime 86400

    crypto isakmp policy 150

    authentication pre-share

    encryption des

    hash sha

    group 2

    lifetime 86400

    telnet 192.168.1.0 255.255.255.0 inside

    telnet 192.168.2.0 255.255.255.0 inside

    telnet timeout 5

    ssh timeout 5

    console timeout 0

    dhcpd auto_config outside

    !

    dhcprelay server 192.68.2.200 inside

    threat-detection basic-threat

    threat-detection scanning-threat

    threat-detection statistics host

    threat-detection statistics access-list

    threat-detection statistics tcp-intercept rate-interval 30 burst-rate 400 average-rate 200

    ntp server 194.35.252.7 source outside prefer

    webvpn

    port 444

    svc image disk0:/anyconnect-macosx-i386-2.4.1012-k9.pkg 1 regex "Intel Mac OS X"

    group-policy DfltGrpPolicy attributes

    vpn-tunnel-protocol IPSec webvpn

    group-policy skiddlevpn internal

    group-policy skiddlevpn attributes

    dns-server value 192.168.2.200

    vpn-tunnel-protocol IPSec l2tp-ipsec

    split-tunnel-policy tunnelspecified

    split-tunnel-network-list value InternalForClientVPNSplitTunnel

    default-domain value skiddle.internal

    username bensebborn password *** encrypted privilege 0

    username bensebborn attributes

    vpn-group-policy skiddlevpn

    username benseb password gXdOhaMts7w/KavS encrypted privilege 15

    tunnel-group 94.236.41.227 type ipsec-l2l

    tunnel-group 94.236.41.227 ipsec-attributes

    pre-shared-key *****

    tunnel-group skiddlevpn type remote-access

    tunnel-group skiddlevpn general-attributes

    address-pool CiscoVPNDHCPPool

    default-group-policy skiddlevpn

    tunnel-group skiddlevpn ipsec-attributes

    pre-shared-key *****

    !

    class-map inspection_default

    match default-inspection-traffic

    !

    !

    policy-map type inspect dns preset_dns_map

    parameters

    message-length maximum client auto

    message-length maximum 512

    policy-map global_policy

    class inspection_default

    inspect dns preset_dns_map

    inspect ftp

    inspect h323 h225

    inspect h323 ras

    inspect rsh

    inspect rtsp

    inspect esmtp

    inspect sqlnet

    inspect skinny

    inspect sunrpc

    inspect xdmcp

    inspect sip

    inspect netbios

    inspect tftp

    inspect ip-options

    policy-map global-policy

    class inspection_default

    inspect icmp

    inspect icmp error

    inspect ipsec-pass-thru

    inspect ftp

    !

    service-policy global_policy global

    smtp-server 164.177.128.203

    prompt hostname context

    call-home reporting anonymous

    Cryptochecksum:6c2eb43fa1150f9a5bb178c716d8fe2b

    : end

    You must even-Security-enabled traffic intra-interface to allow communication between vpn VPN.

    With respect,

    Safwan

    Remember messages useful rate.

  • Is site to site VPN with sufficiently secure router?

    Hello

    I have a question about the site to site VPN with router.

    Internet <> router <> LAN

    If I have a VPN site-to-site configured on the router above with another site. I configured to block incoming Internet connections with the exception of VPN to access list. What are the risks of the LAN is exposed to threats from the Internet? Recommend that you put in a firewall between the router and the LAN, or replace the router with a firewall?

    Thank you

    Hi Amanda,.

    Assuming your L2L looks like this:

    LAN - router - INTERNET - Router_Remote - LAN

    |-------------------------------------------------------------------------------|

    L2L

    Traffic between the two local area networks is protected by the VPN tunnel. It is recommended to use the recommended security (strong encryption settings) to ensure that the encrypted traffic would not be compromised through the Internet.

    On the other hand, if you talk about outbound plaintext to the Internet, as when a user acceses google.com, then you just make out traffic, but never allow all incoming connections.

    If you want to protect your network with advanced security as a FW features, you can consider ZBF, which is the available in IOS Firewall/set function:

    Design of the area Guide of Application and firewall policies

    If you consider that this is not enough, check the ASA5500 series.

    HTH.

    Portu.

    Please note all useful posts

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