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.

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.

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

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.

system-view

[RouterD] interface serial 1/0/0

7-66

Nortel Networks Inc.

Issue 5.3 (30 March 2009)