Gandolf and Larry, thanks for the advice. The problem was the management VLAN interface on the 3500XL. I just turned off the VLAN1 interface and VLAN23 was routed again. Thanks again.
- Sean -----Original Message----- From: Gandolf [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 19, 2002 8:31 PM To: [EMAIL PROTECTED] Subject: Re: Different type of intervlan routing problem... [7:35595] A problem I have come across on the 3500XL switches and dot1q trunking is when the XL switch expected the packets on the native VLAN to be untagged and the device on the other end of the trunk expects the packets to be tagged. This prevents communication through the trunk on the native VLAN. The way to get around this is to set the native VLAN to a VLAN that does not exist anywhere on your network such as VLAN 999. This way all packets going through the trunk are tagged and you will be able to route on vlan 24 again. ""Sean Knox"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > 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 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=35970&t=35595 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
