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DMZ and Ping issue when changing ip address for a server

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17 years 10 months ago #19225 by zillah
Thanks Smurf

So are you saying that machines on one switch cannot ping machine on the other switch ?

No I am not saying that, I just want to let you know that we have got two switches.

I thought all machine could ping the Pix Interface ?

Yes they can ping the PIX dmz interface.

Can you provide the other details listed in the last post to help try and identify the issue ?

i will
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17 years 10 months ago #19229 by Dove
zillah,

Try after clearing the ARP-Cache...it will work for you.
Even am alo had like this problem long back ago, after a lots of R&D we tried by clearing the ARP-Cache the it was fixed the issue... So you also try it and let me know if its worked for you... :)


Dove
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17 years 10 months ago #19236 by zillah

after clearing the ARP-Cache.

You meant the ARP-Cache for the server itself, not for the PIX, because the PIX won't do anything with the ICMP traffic on the DMZ local network.
ICMP traffic will go into one port of the switch and out the relevant one to the receiving server, and never reach the PIX.
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17 years 10 months ago #19237 by zillah

ou meant the ARP-Cache for the server itself,

Great this was the problem, thanks for your advice Dove and thanks for Smurf for his advises
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17 years 10 months ago #19239 by Smurf

ou meant the ARP-Cache for the server itself,

Great this was the problem, thanks for your advice Dove and thanks for Smurf for his advises


No problem, the ARP-Cache's do tend to cause no end of problems which seem to be confusion because they should time out....

Glad ya problem is sorted.

Wayne

Wayne Murphy
Firewall.cx Team Member
www.firewall.cx

Now working for a Security Company called Sec-1 Ltd in the UK, for any
Penetration Testing work visit www.sec-1.com or PM me for details.
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17 years 10 months ago #19253 by zillah

the ARP-Cache's do tend to cause no end of problems which seem to be confusion because they should time out....

Isn't this what you meant in the quote below (my early thread)

The error message for ping is : timed out


Regards
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