Hello list,
I have a network setup as follows:
+-------------+
| xx.xx.xx.39 |
+-------------+
| +--- xx.xx.xx.81
| +-------------+ |--- xx.xx.xx.82
+------| xx.xx.xx.36 |-------|--- xx.xx.xx.83
| +-------------+ |--- xx.xx.xx.84
| +--- xx.xx.xx.85
|
+-------------+
| xx.xx.xx.33 |
+-------------+
.33 is the default gateway for .39 & .36. I see a lot of ICMP redirect
messages coming from .33 to .39 but routing table doe not change:
12:26:54.360274 xx.xx.xx.33 > xx.xx.xx.39: icmp: redirect xx.xx.xx.81 to host xx.xx.xx.36 [tos 0xc2,ECT]
12:26:54.826649 xx.xx.xx.33 > xx.xx.xx.39: icmp: redirect xx.xx.xx.81 to host xx.xx.xx.36 [tos 0xc2,ECT]
12:26:55.006306 xx.xx.xx.33 > xx.xx.xx.39: icmp: redirect xx.xx.xx.81 to host xx.xx.xx.36 [tos 0xc2,ECT]
12:26:55.011350 xx.xx.xx.33 > xx.xx.xx.39: icmp: redirect xx.xx.xx.82 to host xx.xx.xx.36 [tos 0xc2,ECT]
12:26:55.099845 xx.xx.xx.33 > xx.xx.xx.39: icmp: redirect xx.xx.xx.82 to host xx.xx.xx.36 [tos 0xc2,ECT]
ip ro ls cache match 193.254.29.36
show nothing...
accept_redirects is set to 1 for every interface:
proxy:~# for i in /proc/sys/net/ipv4/conf/*/accept_redirects; do cat $i ;done
1
1
1
1
And forwarding is explicitly turned off (RFC says that routers must not accept
ICMP redirects).
proxy:~# cat /proc/sys/net/ipv4/ip_forward
0
But still does not work ;-(
All comments are highly appreciated!
egards
--
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Theodor Milkov Administrator IP Networks
Davidov Electric Ltd. Phone: +359 (2) 730158
PGP: http://www.zimage.delbg.com/zimage.asc
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