Re: [2.4.2X] "Undeletable" ARP entries?

[Casey Carter]

Matthias Andree wrote:

> Hi,
>
> I have strange ARP behaviour here, that I can reproduce. Might be a
> kernel bug.
>
> SHORT: I can use the "arp" tool to set an ARP entry that the "arp" tool
> cannot delete and that hides from "ip"'s view. I know a workaround (at
> the very end of the mail).
>
> LONG:
>
> Use either of:
>
>   SuSE 2.4.20 kernel for 8.2 (k_athlon-2.4.20-96)
> or 2.4.22-rc2-ac1
>   (I haven't tried any other version)
>
> Use this tool:
>
> $ arp -V
> net-tools 1.60
> arp 1.88 (2001-04-04)
> +I18N
> AF: (inet) +UNIX +INET +INET6 +IPX +AX25 +NETROM +X25 +ATALK -ECONET -ROSE
> HW: (ether) +ETHER +ARC +SLIP +PPP +TUNNEL +TR +AX25 +NETROM +X25 +FR -ROSE -ASH +SIT +FDDI +HIPPI -HDLC/LAPB 
>
> Now type (192.168.4.4 isn't available, I would like to use it as SNAT
> source):
>
> $ arp -Ds 192.168.4.4 eth1 pub
>
> This entry cannot be deleted:
>
> $ arp -d 192.168.4.4
> SIOCDARP(priv): Network is unreachable
> (even if a route for 192.168.4.4 is set, the entry isn't removed)
> $ arp -d 192.168.4.4 pub
> SIOCDARP(pub): No such file or directory
>
>  
Try "arp -i eth1 -d 192.168.4.4 pub"

--
Casey Carter
Casey@xxxxxxxxxx
ccarter@xxxxxxxxxxx
AIM: cartec69


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