! Listing 10.24: Ethernet DLSw through dual firewalls--inside DLSw Peer Router R-1 ! !Copyright (C) 2001 by Vincent C Jones. All Rights Reserved. version 11.2 ! hostname R-1 ! ip subnet-zero ! dlsw local-peer peer-id 10.0.0.1 lf 1500 ! 10.0.0.1 inside = 100.0.0.98 outside via F-3A ! = 101.0.0.98 outside via F-4B dlsw bgroup-list 7 bgroups 5 dlsw bgroup-list 11 bgroups 6 ! Production peer with router R-C via firewall F-3A dlsw remote-peer 7 tcp 10.1.2.98 ! Peer to router R-C via F-4B if problems with F-3A dlsw remote-peer 7 tcp 10.3.2.98 backup-peer 10.1.2.98 ! Dummy peer so R-2 can see that we are alive and well dlsw remote-peer 11 tcp 10.0.0.2 dlsw bridge-group 5 ! Production Traffic dlsw bridge-group 6 ! Dummy for router R-2 ! interface Loopback1 description Local peer address for DLSw ip address 10.0.0.1 255.255.255.255 ! interface Ethernet0 ip address 10.100.0.2 255.255.128.0 bridge-group 5 bridge-group 5 spanning-disabled . . ! Add the following two lines to all interfaces except Ethernet0 ip access-group 150 out ip access-group 151 in . . router ospf 123 network 10.0.0.1 0.0.0.0 area 10.100.0.0 network 10.100.0.0 0.0.255.255 area 10.100.0.0 ! access-list 150 deny tcp host 10.0.0.1 host 10.0.0.2 eq 2065 access-list 150 permit ip any any access-list 151 deny tcp host 10.0.0.2 host 10.0.0.1 eq 2065 access-list 151 permit ip any any ! bridge 5 protocol ieee bridge 6 protocol ieee ! end