Hi all, I'm having a problem with intervlan routing on a 3500XL. Port
FastEthernet0/17 is an access link and the host, part of VLAN23, is working
fine and can traverse the network. FastEthernet 0/18 is a 802.1q trunk link
connected to a 802.1q aware host (a special network device my company
makes). Vlan24 is defined as the native vlan for this link on both sides
(the switch and 802.1q host). Connected to the 3500XL's FastEthernet 0/1 is
a router with subifs defined with IP addresses and appropriate 802.1q VLAN
tags for each vlan. VLAN23, our access link, is routed fine throughout the
network. However, I can't ping the 802.1q host on VLAN24 from the connected
router or elsewhere. The 802.1q device has its default gateway set to the
corresponding router subinterface. What am I missing? Below are the relevant
parts of the 3500XL config and router config.
Thanks in advance!
Sean
Relevant parts of show running-config on 3500XL:
interface FastEthernet0/1
duplex full
speed 100
switchport trunk encapsulation dot1q
switchport mode trunk
interface FastEthernet0/17
duplex full
speed 100
switchport access vlan 23
spanning-tree portfast
interface FastEthernet0/18
duplex half
speed 100
switchport trunk encapsulation dot1q
switchport trunk native vlan 24
switchport mode trunk
spanning-tree portfast
interface VLAN1
ip address 10.6.200.2 255.255.255.0
no ip directed-broadcast
no ip route-cache
!
ip default-gateway 10.6.200.1
Switch#show vlan
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
1 default active Fa0/2, Fa0/3, Fa0/4, Fa0/5,
Fa0/6, Fa0/7, Fa0/8, Fa0/9,
Fa0/10, Fa0/11, Fa0/12,
Fa0/13,
Fa0/14, Fa0/15, Fa0/16,
Fa0/19,
Fa0/20, Fa0/21, Fa0/22,
Fa0/23,
Fa0/24, Fa0/25, Fa0/26,
Fa0/27,
Fa0/28, Fa0/29, Fa0/30,
Fa0/31,
Fa0/32, Fa0/33, Fa0/34,
Fa0/35,
Fa0/36, Fa0/37, Fa0/38,
Fa0/39,
Fa0/40, Fa0/41, Fa0/42,
Fa0/43,
Fa0/44, Fa0/45, Fa0/46,
Fa0/47,
Fa0/48, Gi0/1, Gi0/2
24 VLAN0024 active
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1
Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------
------
1 enet 100001 1500 - - - - - 1002 1003
24 enet 100024 1500 - - - - - 0 0
Router8510#show run
interface FastEthernet1/0/4
description Core8500 to 3500XL
ip address 10.6.200.2 255.255.255.0
duplex full
speed 100
interface FastEthernet1/0/4.23
encapsulation dot1Q 23
ip address 10.6.23.1 255.255.255.0
interface FastEthernet1/0/4.24
encapsulation dot1Q 24
ip address 10.6.24.1 255.255.255.0
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