topic Re: PIX interfering with web pages? in Network Security

PIX interfering with web pages?

thanmad — Mon, 11 Mar 2019 12:12:06 GMT

Hi, I'm running into a bizzare issue that i cannot pin down.

If i try to access www.nmh.org from outside of my PIX, it works fine. If I try from inside the PIX, reliability is about 5% that the page will ever show up. The website is pingable from inside, on a packet sniff from the browsing machine i see the inital handshake and a http Get command, the ack from the webserver, then [TCP Previous segment lost] Continuation or non-HTTP traffic.

I do not have these problems with any other site that I know of.

What should i look at next?

Re: PIX interfering with web pages?

brettmilborrow — Tue, 04 Mar 2008 23:27:56 GMT

Have you tried

'fixup protocol http 80'

Re: PIX interfering with web pages?

thanmad — Wed, 05 Mar 2008 15:53:33 GMT

I already have "Fixup protocol http 80" configured on the box.

Re: PIX interfering with web pages?

brettmilborrow — Wed, 05 Mar 2008 16:08:30 GMT

Sorry I meant try:

no fixup protocol http 80

Re: PIX interfering with web pages?

thanmad — Wed, 05 Mar 2008 17:58:31 GMT

Thanks! I'll give that a try.

Re: PIX interfering with web pages?

thanmad — Thu, 06 Mar 2008 22:06:31 GMT

Sorry That did not change anything.

Any other ideas?

Re: PIX interfering with web pages?

mj11 — Thu, 06 Mar 2008 23:23:08 GMT

Are you able to give the software version, how long has the problem been there?

Regards MJ

Re: PIX interfering with web pages?

brettmilborrow — Thu, 06 Mar 2008 23:52:18 GMT

could you try dropping your mtu on the outside interface and test again?