hi---first of all thank u HOW-TO(people here think i''m genious)--:o)))) but will someone plzz help me ! here is the netork i have WEb---|server A|--------|server B|---- my clients eth0 eth1 eth0 eth1 10.0.0.3/8 0.2/8 0.1/8 the network is on ip 10.0.0.0/8 with eth0 on server A as valid ip from ISP ! serverA runs squid & ipchains while serverB is THE linux router(well want it to be!). i have recomplied kernel 2.2.17 with all required options on redhat6.2 & have the following script!.... but my clients fail to access web---WHY??? #!/sbin/sh for f in /proc/sys/net/ipv4/conf/*/rp_filter; do echo 1 > $f done echo 1 > /proc/sys/net/ipv4/ip_forward echo 1 > /proc/sys/net/ipv4/tcp_syncookies for f in /proc/sys/net/ipv4/conf/*/accept_redirects; do echo 0 > $f done for f in /proc/sys/net/ipv4/conf/*/accept_source_route; do echo 0 > $f done ######---starting bandwidth #####-----for eth0 tc qdisc add dev eth0 root handle 10: cbq bandwidth 100Mbit avpkt 1000 tc class add dev eth0 parent 10:0 classid 10:1 cbq bandwidth 100Mbit rate 100Mbit allot 1514 weight 1Mbit prio 8 maxburst 20 avpkt 1500 tc class add dev eth0 parent 10:1 classid 10:100 est 2sec 10sec cbq bandwidth 100Mbit rate 64Kbit allot 1514 weight 1Kbit prio 5 maxburst 20 avpkt 1500 bounded tc class add dev eth0 parent 10:1 classid 10:200 cbq bandwidth 100Mbit rate 90Mbit allot 1514 weight 9Mbit prio 5 maxburst 20 avpkt 1500 bounded tc qdisc add dev eth0 parent 10:100 sfq quantum 1514b perturb 30 tc qdisc add dev eth0 parent 10:200 sfq quantum 1514b perturb 15 tc filter add dev eth0 parent 10:0 protocol ip prio 100 u32 match ip src 10.1.4.0/24 flowid 10:100 tc filter add dev eth0 parent 10:0 protocol ip prio 100 u32 match ip src 10.1.61/32 flowid 10:100 tc filter add dev eth0 parent 10:0 protocol ip prio 100 u32 match ip src 10.0.255.0/29 flowid 10:200 tc filter add dev eth0 parent 10:0 protocol ip prio 100 u32 match ip src 10.175.0.0/16 flowid 10:200 ....etc..etc....same as given in the how-to !! my mind is now exhausted to find a reason(which i''m sure is a very basic one).... one more point to notice is---i want to implement VirtualServers(load balance) between server A & B...well dont have much funds really to go in for those high costing bandwidth at the moment!.. can someone help me plzz with this ! thanking in advance regards & good luck arindam __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one Place. http://shopping.yahoo.com/