I would like to use a Cisco 1721 as a simple bridge between a T1 PPP internet connection and a Linksys RV042 router. Since the netmask is 255.255.255.252 there are no IP addresses for the 1721.
I have tried variations on the solution in Q_21260307 but I cannot get my configuration changes to take effect.
I am using a serial connection to the console port at 9600N81. From instructions in a Cisco pdf I am able to enter enable mode and then issue the configure terminal command at the # prompt. I paste in my config and issue the copy running-config startup-config command to write the configuration into memory but I can see no changes when I issue the sh ru or show startup-config commands.
Are you supposed to press CTRL+Z at the end of the upload?
I guess it could be my commands are in the wrong sequence...
Here is the router hardware config:
cisco 1721 (MPC860P) processor (revision 0x100) with 56231K/9305K bytes of memory.
Processor board ID FOC070904A8 (4050488064), with hardware revision 0000
MPC860P processor: part number 5, mask 2
Bridging software.
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
1 FastEthernet/IEEE 802.3 interface(s)
1 Serial network interface(s)
1 Virtual Private Network (VPN) Module(s)
WIC T1-DSU
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
Here is a variation on the config I am trying to load:
version 12.2
!
hostname 1721BRIDGE
!
no ip routing
!
interface FastEthernet0
speed auto
bridge-group 1
!
interface Serial0
encapsulation ppp
bridge-group 1
!
bridge 1 protocol ieee
!
end
Once the 1721 is in bridge mode I would assume that IP connectivity goes away and the console port is the only connection. How do you set a simple password? The stuff in Q_21260307 kept complaining during upload.
What are the function of the exclamation ! points in the config file?
I would apperciate a very simple configuration file and step by step guide to how to do this.
Thanks!
