Question

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unable to ping subinterfaced IP on Cisco router from a VLAN netgear switch

By jayashreenj ·
Setup

on Cisco router:

0/1 - 192.168.10.8
0/0 - no IP
0/0.1 192.168.42.1


on Netgear switch:

VLAN2 - port 1,2,3,4,5,6
port 1 - connected to the cisco router
port 2 - connected to client machine with IP 192.168.42.10

on the cisco router executed the commands:

interface Ethernet0/0.1
encapsulation dot1Q 2
ip address 192.168.42.1 255.255.255.0
ip classless

Unable to ping the subinterface 42.1 from the client 42.10.

Please HELP!

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All Answers

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What Ip addres did you

by Dumphrey In reply to unable to ping subinterfa ...

apply to the VLAn interface on the switch? Is that the 192.168.42.10 interface? Or was that IP for a host on vlan2?

I am assuming you have tried a new cable and did a no shut on the int e0/0.1? When you do show ip route and show ip int brief do the local network and interfaces show up?

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can't ping the router....

by CG IT In reply to unable to ping subinterfa ...

Does the netgear support dot1Q2? or ISL trunking on the switchport that physically connects the switch to the router?

Simple steps for intervlan routing.

1. configure ISl [or dot1Q] trunking on the port that physically connects the switch to the router
2.enable ISP [encapsulation on the ethernet subinterface
3.assign an address to each subinterface.

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If i remember right ISL

by Dumphrey In reply to can't ping the router....

is a cisco propriatary standard?

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oooh, we weren't going to tell him that...

by CG IT In reply to If i remember right ISL

so ok I'll rephrase the steps

1. Configure 802.1Q trunking on the switchport connecting the switch to the router.
2.Enable 802.1Q encapsulation on the router's ethernet subinterface
3. assign an address to each subinterface.

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OOPS!

by Dumphrey In reply to oooh, we weren't going t ...
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