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Special Forums IP Networking This looks like a tough routing issue Post 302721315 by aixlover on Thursday 25th of October 2012 10:04:35 AM
Old 10-25-2012
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).

Code:
# 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 172.17.220.1: icmp_seq=0 ttl=255 time=5.48 ms
64 bytes from 172.17.220.1: icmp_seq=1 ttl=255 time=0.523 ms

# ping -I bond0 172.17.220.1
PING 172.17.220.1 (172.17.220.1) from 172.17.220.231 bond0: 56(84) bytes of data.
From 172.17.220.231 icmp_seq=1 Destination Host Unreachable
From 172.17.220.231 icmp_seq=2 Destination Host Unreachable

Ping is supposed to work with the default interface bond0. Because the virtual interface bond0 can be pinged by systems in the same subnet, bond0 is working (right?). There must be a routing issue. Here is the interfaces info:

Code:
# cat /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
IPADDR=172.17.220.231
NETMASK=255.255.252.0
GATEWAY=172.17.220.1
ONBOOT=yes
BOOTPROTO=static
USERCTL=no

# cat /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
IPADDR=10.201.135.73
NETMASK=255.255.248.0
ONBOOT=yes
BOOTPROTO=static

OS is RHEL 4.9 (Linux). Please help. Thank you much in advance!

nz

Last edited by Scott; 10-25-2012 at 11:22 AM.. Reason: Code tags for code, please...
 

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ripquery(1M)															      ripquery(1M)

NAME
ripquery - query RIP gateways SYNOPSIS
authkey] dest[time] gateway ... DESCRIPTION
is used to request all routes known by a RIP gateway by sending a RIP request or POLL command. The routing information in any routing pack- ets returned is displayed numerically and symbolically. is intended to be used as a tool for debugging gateways, not for network manage- ment. SNMP is the preferred protocol for network management. by default uses the RIP POLL command, which is an undocumented extension to the RIP specification supported by on SunOS 3.x and later and by 1.4 and later. The RIP POLL command is preferred over the RIP REQUEST command because it is not subject to Split Horizon and/or Poi- soned Reverse. See the RIP RFC for more information. Options Send the query as a version 1 packet. Send the query as a version 2 packet (default). Specifies the authentication password to use for queries. If specified, an authentication type of SIMPLE will be used, if is specified, an authentication type of MD5 will be used; oth- erwise the default is an authentication type of NONE. Authentication fields in incoming packets will be displayed, but not validated. Prevents the address of the responding host from being looked up to determine the symbolic name. Specifies that the query should be for the specified instead of complete routing table. The specification of the optional mask implies a version 2 query. Up to 23 requests about specific destinations may be include in one packet. Uses the RIP POLL command to request information from the routing table. This is the default, but is an undocumented extension supported only by some versions of unOS 3.x and later versions of If there is no response to the RIP POLL command, the RIP REQUEST command is tried. responds to a POLL command with all the routes learned via RIP. Used the RIP REQUEST command to request information from the gateway's routing table. Unlike the RIP POLL command, all gateways should support the RIP REQUEST. If there is no response to the RIP REQUEST command, the RIP POLL command is tried. responds to a REQUEST command with all the routes he announces out the specified interface. Due to limitations in the UDP interface, on systems based on BSD 4.3 Reno or earlier, REQUESTs respond about the interface used to route packets back to the sender. This can be avoided by running on the host being queried. Version information about is displayed before querying the gateways. Specifies the time in seconds to wait for the initial response from a gateway. The default value is 5 seconds. AUTHORS
Jeffrey C Honig. SEE ALSO
gated(1M), gdc(1M), ospf_monitor(1M), BUGS
Some versions of Unix do not allow looking up the symbolic name of a subnet. ripquery(1M)
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