Hi, Im facing a weird problem with tproxy few weeks, the problem is, all work fine except clients that is behind a tplink router and another one that i dont remembe, but almost tplink wr541g routers, if i remove iptables mangle redirect rule, client has traffic, enable not, dont speak english very well, so i hope someone can understand and help me.. this is a server with 1000+ clients, and im getting very frustrated with this problem.
my config: ip rule add fwmark 1 lookup 100 ip route add local 0.0.0.0/0 dev lo table 100 /sbin/iptables -v -t mangle -N DIVERT /sbin/iptables -v -t mangle -A DIVERT -j MARK --set-mark 1 /sbin/iptables -v -t mangle -A DIVERT -j ACCEPT /sbin/iptables -v -t mangle -A PREROUTING -p tcp -m socket -j DIVERT /sbin/iptables -v -t mangle -D PREROUTING -p tcp --dport 80 \ -j TPROXY --tproxy-mark 0x1/0x1 --on-port 5128 2>&1 /usr/local/sbin/ebtables -t broute -A BROUTING -i eth5 -p ipv4 --ip-proto tcp --ip-dport 80 -j redirect --redirect-target DROP /usr/local/sbin/ebtables -t broute -A BROUTING -i eth3 -p ipv4 --ip-proto tcp --ip-sport 80 -j redirect --redirect-target DROP cd /proc/sys/net/bridge/ for i in * do echo 0 > $i done unset i echo 0 > /proc/sys/net/ipv4/conf/lo/rp_filter echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter echo 1 > /proc/sys/net/ipv4/ip_forward i hav 2 interfaces in bridge, as i said.. all working fine.. except with this tplink routers also got log in iptable mangle, and then i can see traffic from the client router, but traffic cant reach squid , in access.log cant get anything i use a mikrotik as pppoe-server, my network is: router <-> squidbox <-> mikrotik <-> clients With Squid inline on a bridge like this there should be *no* squid related configuration outside the Squid box. Is the tplink being used as "router" or "squidbox" in that diagram? What kernel and iptables version is the squidbox? some of the older 2.6.3x kernels have bridge+tproxy problems. Amos I got some more info.. the conection from client tplink dont answer syn, ack in tshark.. i can see syn -> | ack <- | syn, ack -> , but final ack from client dont.. i upgrated kernel to 3.3.4 and iptables to 1.4.13 .. all work fine except the problem with tplink wireless router..