You need to re-add the default route after you take down the CTC link: route add default gw 123.456.789.abc netmask 0.0.0.0 tr0
Substitute the correct IP address of the default gateway. (The one you showed in your example only has 3 parts of the 4 part address.) Mark Post -----Original Message----- From: Moloko Monyepao [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 19, 2002 3:49 AM To: [EMAIL PROTECTED] Subject: Hostname Lookup failure My redhat 7.2 uses CTC through one of my OS390 to the network. So I have configure TR0 direct to the 2216, when I bring down the CTC and bring up TR0 through the following command: ifconfig tr0 147.110.49.17 netmask 255.255.255.252 broadcast 147.110.49.19 gw 172.20.15 85 mtu 1492 up I get the following error "gw: Hostname lookup failure". When I leave the CTC's up my TR0 comes up ok, whith no error. Please assist Moloko
