One port different VLANS

[gavin.mckee]

Hi

I have just started a new Networking job and have been reviewing the configuration of a 6509 running in Hybrid Mode. I have noticed the following (see attached diagram):

Port 6/48 on the 6509 is set to trunking mode.

If I do a show VLANxxx port 6/48 is a member of each VLAN configured on the switch.

The router at the other end of the 100Mbps WAN Link is not set to trunking mode. I am wondering why trunking is configured on this port? Its a bit confusing.

[Anand Narayana]

Hi Gavin,

that is because by default port 6/48 will be in vlan 1, & the router IP address will also be in vlan 1, that is why, what you can do is jus issue the command "set trunk 6/48 off negotiate 1-1005,1025-4094"

hope this helps,

rate this post.

[gavin.mckee]

Thanks for your help on this... maybe I can run something past you.

I came across this problem when trying to define a route map on the 6509. In the IOS configuration I tried to send anything from VLAN146 out through port 6/48 (which should be VLAN199). When I did this a traceroute just timed out all the attempts and pings would also fail. So I just went back to sending it out through a serial link 9/0/0 (as in the routing table).

The route map would look like this

route-map REP-DATA-REDIRECT

set interface vlan199

interface VLAN146

ip policy route-map REP-DATA-REDIRECT

Would the fact that the interface 6/48 is in trunking mode be the problem here?

Thanks

Gav

[Edison Ortiz · Accepted solution]

The route map should look like this:

access-list 1 permit any

route-map REP-DATA-REDIRECT

match ip address 1

set ip next-hop [ip address of the router connected on 6/48]

interface VLAN146

ip policy route-map REP-DATA-REDIRECT

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Thanks