From: Daniel Lang <dl@leo.org> To: freebsd-net@freebsd.org Subject: virtual/alias ips and arp_rtrequest: bad gateway value Message-ID: <20001019110043.A50474@atrbg11.informatik.tu-muenchen.de>
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Dear Folks,
I have some boxes, that use many virtual IPs.
ifconfig(8) tells, one has to use a netmask of 0xffffffff
for the aliases, if they are on the same network
(they are).
I run FreeBSD 4.1-STABLE (some 4.1.1-STABLE)
Assigning the alias addresses to the interface does work,
although I get a warning about a possible netmask problem.
The other thing is, that console and syslog is getting
overwhelmed with
[..]
/kernel: arp_rtrequest: bad gateway value
[..]
I'm not sure, if there's a connection, but I suspect so,
since it doesn't occur on other boxes, without alias ips,
and I searched through the freebsd mailing lists, where this
error has been reported previously, but no solution was posted.
However, I run routed on the concerned machines, so maybe
this one introduces routes, that may be wrong ?
The local network is 131.159.0.0/16.
Here is an excerpt from the routing tables:
Destination Gateway Flags Refs Use Netif Expire
default 131.159.0.254 UGSc 7 567 xl0
127.0.0.1 127.0.0.1 UH 1 36 lo0
131.159 link#1 UC 0 0 xl0 =>
131.159.0.16 0:c0:7b:53:ec:2e UHLW 0 0 xl0 1111
131.159.0.76 8:0:20:85:f3:10 UHLW 0 630 xl0 1101
[ many similar routes ]
131.159.72.5/32 link#1 UC 0 0 xl0 =>
131.159.72.10/32 link#1 UC 0 0 xl0 =>
131.159.72.16 131.159.72.16 UHLW 0 1303 lo0 =>
131.159.72.16/32 link#1 UC 0 0 xl0 =>
131.159.72.17/32 link#1 UC 0 0 xl0 =>
131.159.72.18 131.159.72.18 UHLW 0 514 lo0 =>
131.159.72.18/32 link#1 UC 0 0 xl0 =>
131.159.72.24/32 link#1 UC 0 0 xl0 =>
131.159.72.25 131.159.72.25 UHLW 0 20 lo0 =>
131.159.72.25/32 link#1 UC 0 0 xl0 =>
131.159.72.29/32 link#1 UC 0 0 xl0 =>
[ these are alias ips ]
172.16.0.58 131.159.1.92 UGH 0 0 xl0
172.16.4.131 131.159.1.92 UGH 0 0 xl0
The last two must be introduced by routed, since I don't statically
route the 172.16 net (which is modem pool using these private ips).
Any suggestions ?
Best regards,
Daniel
--
IRCnet: Mr-Spock - My name is Pentium of Borg, division is futile, you
will be approximated. -
*Daniel Lang * dl@leo.org * +49 89 289 25735 * http://www.leo.org/~dl/*
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