| *SOLVED* Access two subnets on two different NICs from VE with venet adapter [message #14258] |
Wed, 20 June 2007 15:34  |
christoph
Messages: 19
Registered: July 2006
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Junior Member |
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Hello!
I've the following problem, when I like to access two different subnets on two different NICs on HN from a VE with venet adapter.
Ok, here is my situation in detail.
HN: eth0 10.0.0.101/24
eth1 192.168.255.1/24
VE: venet0:0 10.0.0.123
venet0:1 192.168.255.33
Now I try to ping to some other machine on the network from within the VE.
-bash-3.00# ping 10.0.0.102
PING 10.0.0.102 (10.0.0.102) 56(84) bytes of data.
64 bytes from 10.0.0.102: icmp_seq=0 ttl=63 time=0.138 ms
64 bytes from 10.0.0.102: icmp_seq=1 ttl=63 time=0.135 ms
--- 10.0.0.102 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.135/0.136/0.138/0.011 ms, pipe 2
-bash-3.00# ping 192.168.255.2
PING 192.168.255.2 (192.168.255.2) 56(84) bytes of data.
--- 192.168.255.2 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 1999ms
-bash-3.00# logout
exited from VE 1001
[root@HN ~]# ping 192.168.255.2
PING 192.168.255.2 (192.168.255.2) 56(84) bytes of data.
64 bytes from 192.168.255.2: icmp_seq=0 ttl=64 time=0.176 ms
I also checked with tcpdump on 192.168.255.2 and found out that the echo request arrives, but with a source IP of 10.0.0.123.
I don't want to use the veth adapter for security reasons.
How can I best solve that problem with venet adapter?
Thank you,
Christoph
[Updated on: Thu, 28 June 2007 07:36] by Moderator Report message to a moderator |
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| Re: *SOLVED* Access two subnets on two different NICs from VE with venet adapter [message #30218 is a reply to message #14258] |
Fri, 16 May 2008 15:05  |
kraln
Messages: 1
Registered: May 2008
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Junior Member |
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I think I have a similar issue.
I have two subnets assigned to me, but only one interface (and one default route). I managed to fix this once, but when I just had to reboot the machine, one of the subnets stopped working.
I have 38.100.42.248/29, HN is 38.100.42.250, 38.100.42.249 is the default gateway.
I also have 38.105.84.192/28.
When the machine came back up, the nodes in the 38.100.42.248 subnet all work but the ones in the 38.105.84.192 subnet all don't.
I don't have any iptables or such malarky running. Help?
(more info:)
[root@pyxis ~]# vzlist
VEID NPROC STATUS IP_ADDR
100 66 running 38.100.42.251
101 6 running 38.100.42.252
105 37 running 38.100.42.253
197 10 running 38.105.84.197
199 8 running 38.105.84.199
200 3 running 38.100.42.254
201 6 running 38.105.84.201
202 23 running 38.105.84.202
[root@pyxis ~]# ip r
38.105.84.197 dev venet0 scope link
38.105.84.199 dev venet0 scope link
38.100.42.251 dev venet0 scope link
38.100.42.252 dev venet0 scope link
38.105.84.201 dev venet0 scope link
38.100.42.253 dev venet0 scope link
38.105.84.202 dev venet0 scope link
38.100.42.254 dev venet0 scope link
38.100.42.248/29 dev eth0 proto kernel scope link src 38.100.42.250
38.105.84.192/28 dev eth0 scope link src 38.100.42.250
169.254.0.0/16 dev eth0 scope link
default via 38.100.42.249 dev eth0
[root@pyxis ~]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
38.105.84.197 * 255.255.255.255 UH 0 0 0 venet0
38.105.84.199 * 255.255.255.255 UH 0 0 0 venet0
38.100.42.251 * 255.255.255.255 UH 0 0 0 venet0
38.100.42.252 * 255.255.255.255 UH 0 0 0 venet0
38.105.84.201 * 255.255.255.255 UH 0 0 0 venet0
38.100.42.253 * 255.255.255.255 UH 0 0 0 venet0
38.105.84.202 * 255.255.255.255 UH 0 0 0 venet0
38.100.42.254 * 255.255.255.255 UH 0 0 0 venet0
38.100.42.248 * 255.255.255.248 U 0 0 0 eth0
38.105.84.192 * 255.255.255.240 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth0
default 38.100.42.249 0.0.0.0 UG 0 0 0 eth0
[root@pyxis ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:30:48:97:E2:70
inet addr:38.100.42.250 Bcast:38.100.42.255 Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:316748 errors:0 dropped:0 overruns:0 frame:0
Base address:0x4000 Memory:d0100000-d0120000
eth0:1 Link encap:Ethernet HWaddr 00:30:48:97:E2:70
inet addr:38.105.84.193 Bcast:38.105.84.207 Mask:255.255.255.240
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Base address:0x4000 Memory:d0100000-d0120000
venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
RX packets:478279 errors:0 dropped:0 overruns:0 frame:0
TX packets:301962 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:194917730 (185.8 MiB) TX bytes:42197245 (40.2 MiB)
[Updated on: Fri, 16 May 2008 15:24] Report message to a moderator |
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| Re: *SOLVED* Access two subnets on two different NICs from VE with venet adapter [message #35043 is a reply to message #30218] |
Mon, 23 February 2009 23:19 |
oeginc
Messages: 5
Registered: February 2009
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Junior Member |
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| kraln wrote on Fri, 16 May 2008 11:05 |
I think I have a similar issue.
I have two subnets assigned to me, but only one interface (and one default route). I managed to fix this once, but when I just had to reboot the machine, one of the subnets stopped working.
I have 38.100.42.248/29, HN is 38.100.42.250, 38.100.42.249 is the default gateway.
I also have 38.105.84.192/28.
When the machine came back up, the nodes in the 38.100.42.248 subnet all work but the ones in the 38.105.84.192 subnet all don't.
I don't have any iptables or such malarky running. Help?
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I am having the exact same problem, have you found a solution yet? Unfortunately, this post is marked FIXED so I doubt anyone is reading it anymore...
[Updated on: Mon, 23 February 2009 23:19] Report message to a moderator |
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