Need help with a routing issue.


 
Thread Tools Search this Thread
Special Forums IP Networking Need help with a routing issue.
# 1  
Old 12-23-2009
Need help with a routing issue.

I have run into a wall troubleshooting a Centos 5 networking issue. Hoping someone can assist.

I've got a box with two vlans trunked over bond0

Code:
bond0     Link encap:Ethernet  HWaddr 00:22:64:C1:D6:60                           
          inet6 addr: fe80::222:64ff:fec1:d660/64 Scope:Link                      
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1               
          RX packets:47984007 errors:0 dropped:0 overruns:0 frame:0               
          TX packets:10057425 errors:0 dropped:0 overruns:0 carrier:0             
          collisions:0 txqueuelen:0                                               
          RX bytes:26690289523 (24.8 GiB)  TX bytes:962015729 (917.4 MiB)         

bond0.129 Link encap:Ethernet  HWaddr 00:22:64:C1:D6:60  
          inet addr:10.150.129.32  Bcast:10.150.129.255  Mask:255.255.255.0
          inet6 addr: fe80::222:64ff:fec1:d660/64 Scope:Link               
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1        
          RX packets:4175 errors:0 dropped:0 overruns:0 frame:0            
          TX packets:494 errors:0 dropped:0 overruns:0 carrier:0           
          collisions:0 txqueuelen:0                                        
          RX bytes:235924 (230.3 KiB)  TX bytes:49366 (48.2 KiB)           

bond0.200 Link encap:Ethernet  HWaddr 00:22:64:C1:D6:60  
          inet addr:10.150.161.14  Bcast:10.150.161.255  Mask:255.255.255.0
          inet6 addr: fe80::222:64ff:fec1:d660/64 Scope:Link               
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1        
          RX packets:47922971 errors:0 dropped:0 overruns:0 frame:0        
          TX packets:10005059 errors:0 dropped:0 overruns:0 carrier:0      
          collisions:0 txqueuelen:0                                        
          RX bytes:25628372288 (23.8 GiB)  TX bytes:875026738 (834.4 MiB)

I am able to ping and ssh to the vlan 200 ipaddress, however I cannot ping or ssh to the vlan 129 address. Or atleast it appears this way becuase when I use tcp dump I can see a ping request come in the bond.129 interface but the response never goes back out.

First off I can ping out via the vlan 129 address. in the example below i am pinging the default gw of this vlan.

Code:
[root@util04 ~]# ping -I bond0.129 10.150.129.1
PING 10.150.129.1 (10.150.129.1) from 10.150.129.32 bond0.129: 56(84) bytes of data.
64 bytes from 10.150.129.1: icmp_seq=1 ttl=255 time=3.29 ms
64 bytes from 10.150.129.1: icmp_seq=2 ttl=255 time=0.835 ms
64 bytes from 10.150.129.1: icmp_seq=3 ttl=255 time=0.820 ms
64 bytes from 10.150.129.1: icmp_seq=4 ttl=255 time=0.804 ms

Here is my routing table.

Code:
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
10.150.161.0    0.0.0.0         255.255.255.0   U         0 0          0 bond0.200
10.150.129.0    0.0.0.0         255.255.255.0   U         0 0          0 bond0.129
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 bond0.200
0.0.0.0         10.150.161.1    0.0.0.0         UG        0 0          0 bond0.200

Am I missing something here?
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. IP Networking

Facing issue in ip6table rule for port based routing management

Hi, Please help me on issue described below, I have 4 machine setup, M1 -> M2 -> M3 | M4. And A laptop that can be reachable through both M3 and M4. M2 has 2 NIC conected to M3 and M4. Now I want to divide the flow coming from M1 for laptop. At M2, I have done following,... (1 Reply)
Discussion started by: rahulbhansali24
1 Replies

2. Solaris

Routing Issue

we are not able to ping client server (falcon-ebr.sbms.bsc.com) from netbackup master server (135.179.96.122 tsprd-ebr.edc.single.net) However from client server we are able to ping the master Server. Please assist on this (1 Reply)
Discussion started by: Rahul466
1 Replies

3. IP Networking

This looks like a tough routing issue

Hi, The default gateway (172.17.220.1) cannot be pinged via the default interface bond0 (172.17.220.231), but can be pinged via interface eth1 (10.201.135.73). # ping -I eth1 172.17.220.1 PING 172.17.220.1 (172.17.220.1) from 10.201.135.73 eth1: 56(84) bytes of data. 64 bytes from... (4 Replies)
Discussion started by: aixlover
4 Replies

4. UNIX for Dummies Questions & Answers

Routing issue - local vs LAN

hi guys suse 11 SP1 x64 I have a server (4 NIC ports 192.168.100.100-103) that connects point to point to a storage device (same thing 4 ports 192.168.110.100-113) but this server connects to normal LAN 10.6.100.x - gateway 10.6.100.1 the issue is when testing connectivity to the storage... (7 Replies)
Discussion started by: karlochacon
7 Replies

5. IP Networking

IP - Routing issue?

I have an IP routing issue or I am just to stupid to work it out myself. I have setup am old PC running SUSE Linux 11.3 as a router, the system has 3 Interfaces connecting 3 networks. Interface 1 = 10.164.2.161/21 Interface 2 = 192.168.1.210/24 Interface 3 = 30.1.0.11/16 The default... (6 Replies)
Discussion started by: hogola
6 Replies

6. AIX

AIX Routing Issue

Hello, I've moved to a new network with multiple AIX box's. Most of them are working fine and dandy. On one box I need to set up a static route to a gateway.. no problem right? Whenever I add the route it appears in the routing table as UGc and then begins adding new entries to the... (1 Reply)
Discussion started by: joshstar14
1 Replies

7. IP Networking

IP Routing

I am using RedHat Linux 9, In this box their are two lan intefaces. eth0 ====> LAN 192.168.100.100 255.255.255.0 eth1 ====> Internet Static IP 255.255.255.0 59.144.168.226 (Gateway) I want to define a gateway 59.144.168.226 for my LAN... (2 Replies)
Discussion started by: jaibw
2 Replies

8. Linux

Routing

Hello Friends I have two network cards eth0 192.168.100.1 eth1 10.0.0.1 There NIC connect with diff. LAN I want to make my Linux machine as a Router, Please tell me using IPTABLES command ROUTE command :) (2 Replies)
Discussion started by: jaibw
2 Replies

9. UNIX for Advanced & Expert Users

routing

Hi, in which file and how shuold be decalred a gateway and its IP adresse ? Where and how add a gateway ? Many thanks before. (4 Replies)
Discussion started by: big123456
4 Replies

10. UNIX for Dummies Questions & Answers

routing

Can anyone help with the following; I am working on a unix server (Apple OS X Server). We have two network cards in the server. Both cards are on different subnets i.e en1 is on 192.168.10.10/24 and the built in ethernet is on 10.10.150.10/24. From a computer plugged into en1 (and set to ip... (5 Replies)
Discussion started by: mrthrt
5 Replies
Login or Register to Ask a Question