В одной подсетке роутеры связать не получилось, думаю и не получится. Использую как бридж,все работает.
---------------------------
Command Task
Step 1 no ip routing Disable IP routing.
Step 2 bridge 1 protocol ieee Specify the bridge protocol to define the type
of Spanning-Tree protocol.
Step 3 interface ethernet 0 Enter configuration mode for the Ethernet
interface.
Step 4 bridge-group 1 Specify the bridge-group number to which the
Ethernet interface belongs.
Step 5 no shutdown Enable the Ethernet interface.
Step 6 exit Exit configuration mode for the Ethernet
interface and the router.
Step 7 interface ATM 0 Enter configuration mode for the ATM
interface.
Step 8 pvc 8/35 Create an ATM permanent virtual circuit
(PVC) for each end node with which the
router communicates.
Step 9 encapsulation aal5snap Specify the encapsulation type for the PVC.
Step 10 bridge-group 1 Specify the bridge-group number to which the
ATM interface belongs.
Step 11 no shutdown Enable the ATM interface.
Step 12 exit Exit configuration mode for the ATM
interface.
Chapter 4 Network Scenarios
Internet Access Scenarios
4-12
Cisco 800 Series Software Configuration Guide
78-5372-06
Configuration Example
The following is a configuration example for this network scenario. You do not
have to enter the commands marked “default.” These commands appear
automatically in the configuration file generated when you use the show
running-config command.
no ip routing
!
interface Ethernet0
no ip address
no ip directed-broadcast (default)
bridge-group 1
!
interface ATM0
no ip address
no ip directed-broadcast (default)
pvc 8/35
encapsulation aal5snap
!
bridge-group 1
!
ip classless (default)
!
bridge 1 protocol ieee
!
end