Broken Internet traffic IP forwarding in last builds

[AndreyPopov]

ASUS WL-500W last worked build DD-WRT v24-sp2 (05/17/11) mini-usb-ftp - build 17084M NEWD Eko

all December 2011 builds by Eco and BrainSlayer? and 2012 builds have broken IP forwarding.

I have:

1. adls modem in bridge mode
2. WL-500W with PPPOE session on WAN and x.x.x.0/27 on LAN
3. LAN of WL-500W connected to load balancing router (I have three providers)
4. to load balancing router connected user segments x.x.x.64/27

on all previously build and 17084 - this work very well.

but beginnig from 17291 build IP forwarding of Internet traffic is BROKEN.

NO Internet on computers in user segments x.x.x.64/27

[Sash]

upgrade 1st. this in no forum.

[AndreyPopov]

upgrade what? all build since 17201 to 18777 have broken IP forwarding!!!!

I'm not change configuration of my WL-500W more than two years. only upgrade firmware.

I also try reset to Factory default on new firmwares (17291 and newer) and make configuration again by hand - NO IP Forwarding! downgrading to 17084 - all work!

[Menom]

also Netgear WNDR3800 default setting

installed firmware wndr3800-factory18767.img wndr3800-factory18777.img internet don't work on all computer (lan or wifi client) in WAN tab all ok, ip assigned from dhcp provider

[Kong]

Probably same bug as I described here #2360

[AndreyPopov]

Replying to Kong:

Probably same bug as I described here #2360

seems like true.

may be from 17084 build nat/firewall have a bug with network segments other than /24 network mask?

in Kong envoriment also present /26 network mask. I use /27 and others.