-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tue, Mar 28, 2017 at 04:46:02PM -0700, Mike McClain wrote: > Howdy, > I have a WAN/LAN challenge I'm hoping for help with. > > I'm runniing Debian 7.11 on a Pentium 3 with 250MB ram. > > mike@/deb7:~> uname -a > Linux playground 3.2.0-4-686-pae #1 SMP Debian 3.2.84-2 i686 GNU/Linux > > > The situation is this: > > phone eth0 eth1 > AT&T-------| |--------| |--------| |-------| | > AT&T modem/ Linux my Win2K > router box router box > > When eth0 is up and eth1 down, > the Linux box can access the web. > 'ping ATTrouter' works. > When eth0 is up and eth1 up, > the Linux box can not access the web. > the Win2K box can access the web. > the Linux box can not access the Win2K shares. > 'ping ATTrouter' fails. > 'ping -Ieth0 ATTrouter' works.
To repeat what Dan said with slightly different wording... check your routing here: /sbin/route -n (and check that above, "when eth0 is up and eth1 is down"). I'll bet that the "Linux box" default route has moved from "AT&T modem/router" to "my router", and now things that the InterTubes are now to be found that way. (I skip the rest for when we have some more light on the above part -- bumping one's head on a Gateway Goblin is no fun ;-) regards - -- tomás -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAljbgYMACgkQBcgs9XrR2kaSNwCdHsBY1kNplnCo/Npr3wjdg43Y SYEAnjfcYe+dUt+uRui6Y7RxQRjAhxMG =N+Fp -----END PGP SIGNATURE-----