Hello Sir, "since your WAN is /30 I guess 125.20.xx.31/30 is you ISP GW while 125.20.xx.32/30 is your WAN right?" yes you are right "can your ISP change your /30 to let say /29 to allow your Squid Box Wan be on the same subnet with your Mikrotik WAN?" Yes we can arrange /29 WAN IP from ISP [root@cache ~]# uname -r 2.6.32-504.23.4.el6.x86_64 [root@cache ~]# rpm -q iptables iptables-1.4.7-14.el6.x86_64 Should I upgrade the version? but question to configure the routing and what will be the network topology are you saying to connect squid box from wan IP range? like this Internet | | | | Mikrotik Squid | | | | Switch | Clients Please note we have /24 IPs in our LAN in Mikrotik router. and /30 wan ip which is static route. -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-mikrotik-public-IP-tp4672057p4672062.html Sent from the Squid - Users mailing list archive at Nabble.com. _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users