Ignoring redirects

Mike Black (mblack@csihq.com)
Wed, 3 Dec 1997 08:03:42 -0500

I've got a local network setup on 192.168.3.x in addition to my internet
setup. To allow my 204.17.222.x machines to get to this network I've
aliased the eth0 device on my Linux box to 192.168.3.30:

eth0 Link encap:Ethernet HWaddr 00:A0:24:51:3D:B3
inet addr:204.17.222.1 Bcast:204.17.222.255 Mask:255.255.255.0
EtherTalk Phase 2 addr:65280/136
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:34432 errors:0 dropped:0 overruns:0 frame:0
TX packets:21252 errors:0 dropped:0 overruns:0 carrier:1 coll:37
Interrupt:11 Base address:0x6200
eth0:1 Link encap:Ethernet HWaddr 00:A0:24:51:3D:B3
inet addr:192.168.3.30 Bcast:192.168.3.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 coll:0
Interrupt:11 Base address:0x6200

Destination Gateway Genmask Flags MSS Window irtt
Iface
localnet * 255.255.255.0 U 0 0 0
eth0
192.168.3.0 * 255.255.255.0 U 0 0 0
eth0
default isdn.csihq.com 0.0.0.0 UG 0 0 0
eth0

While this works and allows the 204 clients to get to the 192 network, I get
some error messages about the clients ignoring redirects:
Dec 2 06:57:32 picard kernel: host 0fde11cc/eth0 ignores redirects for
0103a8c0 to 0103a8c0.
Dec 2 06:58:56 picard kernel: ipv4: (1 messages suppressed. Flood?)
Dec 2 06:58:56 picard kernel: host 0fde11cc/eth0 ignores redirects for
0103a8c0 to 0103a8c0.
Dec 2 08:55:45 picard kernel: ipv4: (1 messages suppressed. Flood?)
Dec 2 08:55:45 picard kernel: host 0fde11cc/eth0 ignores redirects for
0103a8c0 to 0103a8c0.
Dec 2 09:01:03 picard kernel: ipv4: (1 messages suppressed. Flood?)

Seems kinda' silly for Linux to send a redirect to itself on the 204
address. This happens when one of the 204 clients tries to access the 192
network.

Is there something I should fix or should Linux NOT be sending these
redirects?