I have implemented advance routing fo load balancing and a script for and fail over on a Linux machine which run squid and dansguardian for proxying, i have three interfaces on this machine which are 10.201.108.254 eth1 external interface connected to service provider 10.201.109.254 eth2 external interface connected to service provider 10.200.14.11 eth0 Internal interface for users. Routing List 192.101.5.0/26 via 10.200.14.254 dev eth0 10.1.45.0/24 via 10.200.14.254 dev eth0 192.168.100.0/24 via 10.200.14.254 dev eth0 10.201.108.0/24 dev eth1 proto kernel scope link src 10.201.108.11 10.201.14.0/24 dev eth3 proto kernel scope link src 10.201.14.11 10.201.109.0/24 dev eth2 proto kernel scope link src 10.201.109.11 192.168.65.0/24 via 10.200.14.254 dev eth0 192.168.50.0/24 via 10.200.14.254 dev eth0 192.168.151.0/24 via 10.200.14.254 dev eth0 10.1.10.0/24 via 10.200.14.254 dev eth0 10.200.17.0/24 via 10.200.14.254 dev eth0 10.200.16.0/24 via 10.200.14.254 dev eth0 131.11.3.0/24 via 10.200.14.254 dev eth0 192.168.155.0/24 via 10.200.14.254 dev eth0 10.200.14.0/24 dev eth0 proto kernel scope link src 10.200.14.11 192.168.152.0/24 via 10.200.14.254 dev eth0 10.203.0.0/24 via 10.200.14.254 dev eth0 172.25.0.0/16 via 10.200.14.254 dev eth0 10.100.0.0/16 via 10.200.14.254 dev eth0 192.172.0.0/16 via 10.200.14.254 dev eth0 169.254.0.0/16 dev eth3 scope link 10.200.0.0/16 via 10.200.14.254 dev eth0 default nexthop via 10.201.108.254 dev eth1 weight 2 nexthop via 10.201.109.254 dev eth2 weight 1 I have added static routes for LAN users which are #LOCAL NETWORKS any net 192.168.151.0/24 gw 10.200.14.254 dev eth0 any net 192.168.50.0/24 gw 10.200.14.254 dev eth0 any net 192.168.152.0/24 gw 10.200.14.254 dev eth0 any net 192.168.155.0/24 gw 10.200.14.254 dev eth0 any net 192.168.65.0/24 gw 10.200.14.254 dev eth0 any net 192.172.0.0/16 gw 10.200.14.254 dev eth0 Problem is that when i ping internal interface that is 10.200.14.11 which is assigned on eth0, the ping breaks too much due to which browsing gets slow when internet traffic load is high on proxy server then ping breaks too much on internal interface, i have checked the network on layer-2 switches and layer-3 firewalls which are fine changed network cables also changed network interface on proxy server still ping is breaking, i dont understand wts the reason traffice flow is Users -> Firewall (gateway) -> Proxy Server -> Router -> service provider any help will b highly appreciated -- View this message in context: http://old.nabble.com/ping-breaks-tp26808670p26808670.html Sent from the Squid - Users mailing list archive at Nabble.com.