troubleshooting Question

Cisco 4507R toubleshoot accessing on vlan 40 from vlan 1

Avatar of ee-gd
ee-gdFlag for United Kingdom of Great Britain and Northern Ireland asked on
RoutersSwitches / HubsCisco
9 Comments1 Solution984 ViewsLast Modified:
we added a bt infinity connection and I need to add another vlan to our 4507R, but can't get it to work and I can't access it from another vlan.

this is what I've setup

vlan 40
 name BT Infinity

interface Vlan40
 description ----- BT Infinity - vlan 40 - -----
 ip address
 ip helper-address
 no ip redirects

as part of sh ip route I can see:
C is directly connected, Vlan40

from the 4507R i can ping the infinity router
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

but i can't ping it or open the admin page from any machine on vlan 1.

the bt infinity router is connected to a smaller switch, which is connected to interface GigabitEthernet6/11 on the 4507R and that has no access lists applied etc
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,40

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