3Com 10014299 Configure the router Router B Enable X.25 switching, Configure local X.25 switching

238CHAPTER 16: CONFIGURING LAPB AND X.25

II.Networking Diagram

Figure 78 Networking for the SVC application of X.25 over Frame Relay

S1	DLCI100	S1
S0		S0
Router B		Router C
S0		S0
E0 Router A	E0	Router D
PC1		PC2

III. Configuration Procedure

1Configure the router Router A:

a Configure the basic X.25 parameters.

[Router]interface serial 0 [Router-Serial0]link-protocol x25 dte ietf

[Router-Serial0]x25 x121-address 1

[Router-Serial0]x25 map ip 1.1.1.2 x121-address 2

[Router-Serial0]ip address 1.1.1.1 255.0.0.0

2Configure the router Router D:

aConfigure the basic X.25 parameters:

[Router]config

[Router]interface serial 0 [Router-Serial0]link-protocol x25 dte ietf

[Router-Serial0]x25 x121-address 2

[Router-Serial0]x25 map ip 1.1.1.1 x121-address 1

[Router-Serial0]ip address 1.1.1.2 255.0.0.0

3Configure the router Router B:

aEnable X.25 switching.

[Router]x25 switching

bEnable switching on Frame Relay DCE.

[Router]fr switching

cConfigure Serial 0 as the X.25 interface.

[Router]interface serial 0

[Router-Serial0]switching x25 dce ietf

dConfigure Serial 1 as the Frame Relay interface.

[Router]interface serial 1

[Router-Serial1]link-protocol frame-relay

[Router-Serial1]fr interface-type dce

eConfigure a Frame Relay Annex G DLCI.

[Router-Serial1]fr dlci 100

[Router-fr-dlci-100]annexg dce

fConfigure local X.25 switching.