Configuration example for bridging over dialer interface
Network requirements
As shown in Figure 116, Router A and Router B are interconnected through an ISDN link.
Configure the two routers to enable transparent bridging over dialer interfaces between the two LAN segments.
Figure 116: Network diagram
Configuration procedure
Configure Router A:
# Enable bridging globally.
[RouterA] bridge enable [RouterA] bridge 1 enable
# Configure a dialup access control list.
[RouterA] dialer-rule 1 bridge permit
# Configure dialing on the ISDN BRI interface BRI 2/0.
[RouterA] interface bri2/0 [RouterA-Bri2/0] link-protocol ppp [RouterA-Bri2/0] dialer enable-circular [RouterA-Bri2/0] dialer-group 1 [RouterA-Bri2/0] dialer circular-group 2 [RouterA-Bri2/0] quit
# Add Dialer 2 to bridge set 1.
[RouterA] interface dialer2 [RouterA-Dialer2] link-protocol ppp [RouterA-Dialer2] bridge-set 1 [RouterA-Dialer2] dialer enable-circular [RouterA-Dialer2] dialer-group 1 [RouterA-Dialer2] dialer number 660208 [RouterA-Dialer2] quit
# Add Ethernet 1/1 to bridge set 1.
[RouterA] interface ethernet1/1 [RouterA-Ethernet1/1] bridge-set 1
Configure Router B:
# Enable bridging globally.
[RouterB] bridge enable [RouterB] bridge 1 enable
# Configure a dialup access control list.
[RouterB] dialer-rule 1 bridge permit
# Configure dialing on the ISDN BRI interface BRI 2/0.
[RouterB] interface bri2/0 [RouterB-Bri2/0] link-protocol ppp [RouterB-Bri2/0] dialer enable-circular [RouterB-Bri2/0] dialer-group 1 [RouterB-Bri2/0] dialer circular-group 2 [RouterB-Bri2/0] quit
# Add Dialer 2 to bridge set 1.
[RouterB] interface dialer2 [RouterB-Dialer2] link-protocol ppp [RouterB-Dialer2] bridge-set 1 [RouterB-Dialer2] dialer enable-circular [RouterB-Dialer2] dialer-group 1 [RouterB-Dialer2] dialer number 660206 [RouterB-Dialer2] quit
# Add Ethernet 1/1 to bridge set 1.
[RouterB] interface ethernet1/1 [RouterB-Ethernet1/1] bridge-set 1