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PIX 525 6.3 fragmentation issues

wilson_1234_2
Level 3
Level 3

I have a PIX 525 6.3 that has all interfaces configured and MTU set to 1500 bytes.

I am experiencing fragmentation issues.

I have LAN workstations that cannot ping anything connected to the PIX outside interface and beyond with packets larger than 992 bytes.

I can ping servers on the DMZ interfaces with 1472 bytes just fine.

The Internet edge router and devices directly connected to the PIX outside Interface, only the 992 bytes. So it is not an Internet fragmentation issue and there is no VPN in play.

Any thoughts?

2 Replies 2

raym0ndchan
Level 1
Level 1

ip audit signature 2150 disable

ip audit signature 2151 disable

Would this cause a less efficient internet connection?

Fragmentation of regular Internet web traffic?

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