Hi All, First of all my setup looks like this Router (A.B.C.D) - dom0(A.B.C.D+1) - domU(A.B.C.D+2) I can ping from domU -> dom0 and visa versa. I can ping from dom0 -> Router. I can''t ping from domU -> Router. I have read a fair amount of posts from the archives and nothing seems to point me in the right direction. I have checked that the bridge is up and the routing seems to be correct. Kind Regards, Kris Amy _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Kris,> First of all my setup looks like this > > Router (A.B.C.D) - dom0(A.B.C.D+1) - domU(A.B.C.D+2) > > I can ping from domU -> dom0 and visa versa. > I can ping from dom0 -> Router. > I can''t ping from domU -> Router.It would appear that either domU doesn''t know how to reach the router, and/or dom0 isn''t forwarding IP. Perhaps you could try the following? The domU will need dom0 as it''s gateway, so the routing table in domU should be something like: Destination Gateway Genmask Flags Metric Ref Use Iface A.B.C.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 0.0.0.0 A.B.C.D+1 0.0.0.0 UG 0 0 0 eth0 Also, ensure that port forwarding is enabled in the dom0: #echo 1 > /proc/sys/net/ipv4/ip_forward Marcus. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Marcus, I checked that and still no go. Is there any issues currently with 2.0.6 and dom0 having multiple ip''s? Cheers, KA Marcus Brown wrote:>Hi Kris, > > > >>First of all my setup looks like this >> >>Router (A.B.C.D) - dom0(A.B.C.D+1) - domU(A.B.C.D+2) >> >>I can ping from domU -> dom0 and visa versa. >>I can ping from dom0 -> Router. >>I can''t ping from domU -> Router. >> >> > >It would appear that either domU doesn''t know how to reach the router, >and/or dom0 isn''t forwarding IP. > >Perhaps you could try the following? > >The domU will need dom0 as it''s gateway, so the routing table in >domU should be something like: >Destination Gateway Genmask Flags Metric Ref Use Iface >A.B.C.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 >0.0.0.0 A.B.C.D+1 0.0.0.0 UG 0 0 0 eth0 > >Also, ensure that port forwarding is enabled in the dom0: >#echo 1 > /proc/sys/net/ipv4/ip_forward > > >Marcus. > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Mon, Aug 22, 2005 at 11:23:37AM +1000, Kris Amy wrote:> I checked that and still no go.Do "tcpdump -ln -s1500 -iany" and watch a ping from domU to the router. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi All, After disabling the alias on dom0 and rebooting everything works...Strange. Thanks everyone for the help. Cheers, KA Kris Amy wrote:> Hi Marcus, > > I checked that and still no go. > > Is there any issues currently with 2.0.6 and dom0 having multiple ip''s? > > Cheers, > KA > > Marcus Brown wrote: > >> Hi Kris, >> >> >> >>> First of all my setup looks like this >>> >>> Router (A.B.C.D) - dom0(A.B.C.D+1) - domU(A.B.C.D+2) >>> >>> I can ping from domU -> dom0 and visa versa. >>> I can ping from dom0 -> Router. >>> I can''t ping from domU -> Router. >>> >> >> >> It would appear that either domU doesn''t know how to reach the router, >> and/or dom0 isn''t forwarding IP. >> >> Perhaps you could try the following? >> >> The domU will need dom0 as it''s gateway, so the routing table in >> domU should be something like: >> Destination Gateway Genmask Flags Metric Ref >> Use Iface >> A.B.C.0 0.0.0.0 255.255.255.0 U 0 0 >> 0 eth0 >> 0.0.0.0 A.B.C.D+1 0.0.0.0 UG 0 0 >> 0 eth0 >> >> Also, ensure that port forwarding is enabled in the dom0: >> #echo 1 > /proc/sys/net/ipv4/ip_forward >> >> >> Marcus. >> >> > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users