asked on cisco 897 WAN side Vlan config
Hi
based on my recent success with silly questions I thought I'd try again.
I have Wires only line for an ISP, details :-
a.b.c.1/30 as the remote gateway
a.b.c.2 as my "outside" router address
Vlan 10
I have routed subnet on a /29, which is fine, I just need to get a.b.c.2 on Vlan 10 so I can route into a.b.c.1.
I am using a 897 with the ISP line on gi8 as the handoff is MM fibre and gi8 has sfp.
I've tried various things but I just can't get to the point I can ping a.b.c.1, I am blatantly missing something here so any abuse accepted!
Thank you
Cisco
Last Comment
Craig Beck
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OK, 2nd try, the sub int was the solution, just after the ISP sorted out their end!
thank you!
thank you!
I had got as far as a "sub interface" , but how does gi8.10 connect to physical gi8? Are they effectively linked?Yes, a subinterface is just a virtual interface connected to the physical interface, so it's physical port 8, virtual interface 10.
BT use a lot of different configurations depending on the circuit type, IP provision, etc. It's common to be given a /30 for the WAN if you have been given an additional routed subnet.
Glad you got it working!
couldn't agree more, I have never had a vlan on a /30 or /31 route before but the carrier (bt I think) uses it.
You have highlighted exactly what I have tried, I can't ping their gateway, my inside ports are one vlan and routed fine, I just can't open the link to the remote gateway.
I had got as far as a "sub interface" , but how does gi8.10 connect to physical gi8? Are they effectively linked?
Thanks for you comments