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Network Config

Posted on 2016-11-05
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Last Modified: 2016-11-05
Hi Team

I wanted to know if its possible to use 2 routers that are congured with HSRP on the same subnet.

Router 1 (R1)
Port G0/0.3
IP Address 192.168.1.3
Standby 3 ip 192.168.1.1

Router 2 (R2)
Port G0/0.3
IP Address 192.168.1.4
Standby 3 IP 192.168.1.1

Both are connected to trunk ports on a switch with VLAN 3. I havent configured this in cisco packet tracer yet but i wanted to check if channel-port (odd portd go through R1 and even go through R2) would be the best option or controlling it by DHCP server?

Thanks in advance
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Question by:Imran Shabir
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Don Johnston earned 500 total points
ID: 41875458
I wanted to know if its possible to use 2 routers that are congured with HSRP on the same subnet.
Absolutely.  In fact, HSRP neighbors must share a common subnet.

I havent configured this in cisco packet tracer yet but i wanted to check if channel-port (odd portd go through R1 and even go through R2) would be the best option or controlling it by DHCP server
I don't follow you.  DHCP doesn't have anything to do with HSRP.  Unless you mean defining the default gateway for hosts using DHCP.  In which case... it still doesn't matter.  As long as the hosts use the 192.168.1.1 address as their DG.
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by:Imran Shabir
ID: 41875466
Thanks for the reply Don, if both have HSRP setup and i wanted to say use port channelling, wouldnt there be a routing issues as both routers have 192.168.1.1 as a standby/DG?
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by:Don Johnston
ID: 41875467
What do you mean when you say "port-channeling"?  Do you mean ether-channel?
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by:Imran Shabir
ID: 41875477
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by:Don Johnston
Don Johnston earned 500 total points
ID: 41875480
HSRP doesn't factor in to the channeling issue. As long as the channel group is correctly configured and operational, then HSRP doesn't care (or know) about port channeling.

However, your statement of "wouldnt there be a routing issues as both routers have 192.168.1.1 as a standby/DG?" is a bit confusing.

I'm not really sure as to what your concern is here.
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Author Comment

by:Imran Shabir
ID: 41875486
Don

I was thinking about the standby config, if both routers have the same standby wouldnt there be a routing issue?
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by:Don Johnston
Don Johnston earned 500 total points
ID: 41875499
Port channeling is a layer 2 function.  Routing is layer 3.  

There's no connection between port channeling and routing protocols.
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Author Comment

by:Imran Shabir
ID: 41875500
Don

Thanks for clarifying.
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Author Closing Comment

by:Imran Shabir
ID: 41875503
Thankyou
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