Nortel Networks 8000 User Manual
Page 269
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7 LAPB and X.25 configuration
Nortel Secure Router 8000 Series
Configuration -WAN Access
# Configure the link protocol of Serial 1/0/0 as X.25 and specify it to operate in DCE mode.
<RouterA> system-view
[RouterA] interface serial 1/0/0
[RouterA-Serial1/0/0] link-protocol x25 dce
[RouterA-Serial1/0/0] quit
# Configure the link layer protocol of other synchronous serial interfaces as X.25 and specify
it to operate in DCE mode. Their configuration is identical to the configuration of Serial 1/0/0.
# Configure IP addresses on Ethernet 4/0/0.
[RouterA] interface ethernet 4/0/0
[RouterA-Ethernet4/0/0] ip address 10.1.1.1 255.255.255.0
[RouterA-Ethernet4/0/0] quit
# Enable the X.25 switching in the system view.
[RouterA] x25 switching
# Create the X.25 hunt group named hg1 in the system view.
[RouterA] x25 hunt-group hg1 round-robin
# Add Serial 1/0/1, Serial 2/0/1 and XOT Tunnel to the hunt group.
[RouterA-hg-hg1] channel interface serial 1/0/1
[RouterA-hg-hg1] channel interface serial 2/0/1
[RouterA-hg-hg1] channel xot 10.1.1.2
[RouterA-hg-hg1] quit
# Configure the X.25 switching route whose forwarding address is hg1 and enable the
substitution between destination addresses and source addresses.
[RouterA] x25 switch svc 2222 sub-dest 8888 sub-source 3333 hunt-group hg1
# Configure the X.25 switching route heading for the X.25 terminal.
[RouterA] x25 switch svc 1111
interface serial 3/0/0
[RouterA] x25 switch svc 1112
interface serial 2/0/0
[RouterA] x25 switch svc 1119
interface serial 1/0/0
Step 2
Configure Router B.
# Configure the link layer protocol of Serial 1/0/0 as X.25 and specify it to operate in DTE
mode.
<RouterB> system-view
[RouterB] interface serial 1/0/0
[RouterB-Serial1/0/0]link-protocol x25 dte
[RouterB-Serial1/0/0] x25 x121-address 8888
Step 3
The configurations on Router C and Router E are identical with the configuration on Router
B.
Step 4
Configure Router D.
# Configure the link layer protocol of Serial 1/0/0 as X.25 and specify it to operate in DCE
mode.
<RouterD> system-view
[RouterD] interface serial 1/0/0
7-66
Nortel Networks Inc.
Issue 5.3 (30 March 2009)