Great Circle Associates Firewalls
(April 1995)
 

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Subject: Re: C & B 'Choke' Router config
From: lavondes @ tidtest . total . fr (Michel Lavondes)
Date: Wed, 19 Apr 95 12:26:26 BST
To: cwerner @ hsdemo . merit . edu (Chris Werner)
Cc: firewalls @ greatcircle . com (fw)
In-reply-to: <199504181830 . OAA09639 @ hostserver . merit . edu>; from "Chris Werner" at Apr 18, 95 2:30 pm
Reply-to: lavondes @ tidtest . total . fr

Chris Werner wrote :
> 
> Q:
> A can ping B and X but not Y
> Y can ping X and B but not A
> 
> *If* I enable ip proxy-arp A can ping Y and Y can ping A. :-)
> 

Check subnet masks on A and Y. The fact that proxy ARP is needed probably
means that either or both doesn't recognize the other as being behind the
router.

You may also want to do a debug ip-<something> on your cisco.

HTH
-- 
Michel Lavondes          |It's is not, it isn't ain't, and it's it's, not its,
lavondes @
 tidtest .
 total .
 fr|if you mean it is. If you don't, it's its. Then too,
Phone : +33-1-4135-4198  |it's hers. It isn't her's. It isn't our's, either.
#include <disclaimer.h>  |It's ours, and likewise yours and theirs.


References:
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From: Paul Crossley <paul @ toploguk . co . uk>
Next: Re: SLIP past the firewall?
From: Howard Berkowitz <hcb @ clark . net>
Indexed By Thread Previous: C & B 'Choke' Router config
From: cwerner @ hsdemo . merit . edu (Chris Werner)
Next: Re: C & B 'Choke' Router config
From: cwerner @ hsdemo . merit . edu (Christopher L. Werner)

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