MLPPP w/ LFI + cRTP - NAT ISSUE

[salata]

I've enabled QoS features over 2 1750 routers (MLPPP w/ LFI + cRTP and change the default voice paylod) and the results obtained were very good.

The quality of voice under link congestion was excellente.

But when apply NAT, it doesn't work.

ICMP traffic works, but for example I couldn't pass HTTP traffic or any other kind.

Any idea about NAT bug or may be I've misconfigured something?

[rokibbe]

NAT bug may indeed be the case (without more details, it's hard to check for ya) but also be aware that NAT is one of the most memory intensive features in the IOS. Couple that with the MLPPP and the traffic shaping, and you've got quite a demand on a little router with only 32 megs of DRAM by default. Again, without a SHOW TECH to review, I can't say for sure, but it's definitely worth having someone look closer into.

[salata]

Please, tell me what kind of details could be important.

Have in mind, that ICMP traffic passed without any problem, and the CPU and memory usage hadn't been high.