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Date:      Fri, 12 Jan 2007 06:44:24 -0800 (PST)
From:      Patrick Dung <patrick_dkt@yahoo.com.hk>
To:        freebsd-questions@FreeBSD.ORG
Subject:   Re: How to clear strage route in routing table?
Message-ID:  <947766.12441.qm@web54304.mail.yahoo.com>
In-Reply-To: <200701111812.l0BICZm0017315@lurza.secnetix.de>

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[root@fbsd2 ~]# ifconfig -a
lnc0: flags=108843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,NEEDSGIANT>
mtu 1500
        inet6 fe80::20c:29ff:fec4:3bd3%lnc0 prefixlen 64 scopeid 0x1
        inet 172.16.21.62 netmask 0xffffff00 broadcast 172.16.21.255
        ether 00:0c:29:c4:3b:d3
lnc1: flags=108802<BROADCAST,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
        ether 00:0c:29:c4:3b:dd
plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
        inet 127.0.0.1 netmask 0xff000000
[root@fbsd2 ~]# route add 192.168.3.0 255.255.255.0 172.16.21.1
add net 192.168.3.0: gateway 255.255.255.0
[root@fbsd2 ~]# netstat -nr
Routing tables

Internet:
Destination        Gateway            Flags    Refs      Use  Netif
Expire
default            172.16.21.1        UGS         1      338   lnc0
127.0.0.1          127.0.0.1          UH          0      426    lo0
128.0.1&0xac101501 255.255.255.0      UGS         0        0   lnc0
172.16.21/24       link#1             UC          0        0   lnc0
172.16.21.1        00:50:56:c0:00:08  UHLW        2    11381   lnc0  
1152
172.16.21.62       00:0c:29:c4:3b:d3  UHLW        1       26    lo0

Internet6:
Destination                       Gateway                       Flags  
   Netif Expire
::1                               ::1                           UH     
    lo0
fe80::%lnc0/64                    link#1                        UC     
   lnc0
fe80::20c:29ff:fec4:3bd3%lnc0     00:0c:29:c4:3b:d3             UHL    
    lo0
fe80::%lo0/64                     fe80::1%lo0                   U      
    lo0
fe80::1%lo0                       link#4                        UHL    
    lo0
ff01:1::/32                       link#1                        UC     
   lnc0
ff01:4::/32                       ::1                           UC     
    lo0
ff02::%lnc0/32                    link#1                        UC     
   lnc0
ff02::%lo0/32                     ::1                           UC     
    lo0
[root@fbsd2 ~]# route delete 192.168.3.0 255.255.255.0
route: writing to routing socket: No such process
delete net 192.168.3.0: gateway 255.255.255.0: not in table
[root@fbsd2 ~]# route delete 192.168.3.0 255.255.255.0 172.16.21.1
route: writing to routing socket: No such process
delete net 192.168.3.0: gateway 255.255.255.0: not in table
[root@fbsd2 ~]# route delete -net 192.168.3.0 255.255.255.0 172.16.21.1
route: writing to routing socket: No such process
delete net 192.168.3.0: gateway 255.255.255.0: not in table
[root@fbsd2 ~]# route delete "128.0.1&0xac101501" 255.255.255.0
route: bad address: 128.0.1&0xac101501
[root@fbsd2 ~]# route delete 128.0.1 255.255.255.0
route: writing to routing socket: No such process
delete host 128.0.1: gateway 255.255.255.0: not in table


--- Oliver Fromme <olli@lurza.secnetix.de> wrote:

> Patrick Dung wrote:
>  > Suppose I have mistype a command:
>  > # route add 192.168.3.0 255.255.255.0 192.168.3.1
> 
> So you swapped gateway and netmask.  Nasty mistake.  :-)
> 
> It's usually better to use CIDR notation (with a slash
> followed by the number of network bits), to avoid any
> confusion.  It's also less typing.
> # route add 192.168.3.0/24 192.168.3.1
> 
>  > There is a strange routing table and I am unable to remove it
> unless
>  > reboot:
>  > 
>  > 192.168.0&0xc0a80301 255.255.255.0      UGS         0       86  
> fxp0
> 
> How did you try to remove it (exact comand line, please),
> and what was the error message that you got?  You should
> enter exactly the same line you used to add the route,
> only replace "add" with "delete".
> 
> It works fine for me, so I assume you did a syntax error
> when trying to remove it.
> 
> Best regards
>    Oliver
> 
> -- 
> Oliver Fromme,  secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
> Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd
> Any opinions expressed in this message may be personal to the author
> and may not necessarily reflect the opinions of secnetix in any way.
> 
> "The last good thing written in C was
> Franz Schubert's Symphony number 9."
>         -- Erwin Dieterich
> 



 
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