From: Dr. Martin Körfer (koerfer@mpch-mainz.mpg.de)
Date: Fri Aug 08 2003 - 04:28:44 EDT
Hi managers,
Thanks for all replies, espacially from Phil Baldwin, Michael Polnick, Fred van
Kempen, Chris Medaglia, Michael Deacy, Oisin McGuinness, Danielle Georgette that
all pointed out, that this dynamical routing behaviour has its origin in "ICMP
redirects".
A method to ignore this was proposed by using the dbx-tool.
Representative for a lot of proposals, I attach the one of Phil Baldwin:
Modifying the /etc/inet.local in the proposed way and restarting
/sbin/init.d/inet was successfull, but deleted also the default-route-entry.
After restarting the network the default-route-entry was retained and the
routing table looked fine.
One error massage appeared, after I restarted "inet":
--- # /sbin/init.d/inet start Configuring network hostname: dionysos.mpch-mainz.mpg.de dbx version 5.1 Type 'help' for help. stopped at [thread_block:3208 ,0xfffffc00002e5f1c] Source not available 0 32 32 ---- However it seems to run Thanks again Martin ------------------------------------------------------------------------------- Hi Martin thsi may do the job (it stops ICMP redirects - type M in netstat): /usr/bin/dbx -k /vmunix p icmp_rejectcodemask a icmp_rejectcodemask=0x20 p icmp_rejectcodemask you can run this from root for a running system. you can also put ### This bit disables icmp redirects (that's the plan) ### Added under advice from Compaq /usr/bin/dbx -k /vmunix << THE_END 2>/dev/null p icmp_rejectcodemask a icmp_rejectcodemask=0x20 p icmp_rejectcodemask THE_END into the start script for inet (/sbin/init.d/inet) you can also try setting pmtu_enabled = 0 in the inet stanza in the sysconfigtab ( this should take care of P entries in netstat) - this will need a reboot.... hope this helps regards Phil. -- Dr. Martin Körfer MPI f. Chemie EDV J.J.Becherweg 27 D-55128 Mainz Tel. 49-6131-305488 Fax: 49-6131-305318 ------------------------------------------------- This mail sent through IMP: http://horde.org/imp/
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