Date: Thu, 23 Feb 2006 09:56:46 +0200 From: Nikos Vassiliadis <nvass@teledomenet.gr> To: Eugene Grosbein <eugen@kuzbass.ru> Cc: freebsd-hackers@freebsd.org Subject: Re: (feature change request) remove link-layer generated routes from netstat -r Message-ID: <200602230956.47263.nvass@teledomenet.gr> In-Reply-To: <20060223050659.GA89118@svzserv.kemerovo.su> References: <200602221550.17842.nvass@teledomenet.gr> <20060223050659.GA89118@svzserv.kemerovo.su>
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On Thursday 23 February 2006 07:06, Eugene Grosbein wrote:
> On Wed, Feb 22, 2006 at 03:50:17PM +0200, Nikos Vassiliadis wrote:
> > netstat -r prints link-layer generated routes and many
> > times the output becomes somehow obscure. For
> > example:
> >
> > root@brad:0:/usr/home/src/FreeBSD-6/src/usr.bin/netstat# netstat
> > -ranfinet Routing tables
> >
> > Internet:
> > Destination Gateway Flags Refs Use Netif
> > Expire default 10.1.1.244 UGS 0 31016
> > rl0 10.1.1/24 link#1 UC 0 0 rl0
> > 10.1.1.181 00:0f:1f:fb:02:f5 UHLW 1 0 rl0
> > 10.1.1.182 00:e0:fc:38:d4:40 UHLW 1 0 rl0
> > 10.1.1.183 00:e0:fc:65:07:fd UHLW 1 0 rl0
> > 10.1.1.244 00:50:fc:fe:74:3b UHLW 2 1 rl0
> > 10.1.1.254 00:0c:cf:70:50:06 UHLW 1 0 rl0
> > 127.0.0.1 127.0.0.1 UH 0 1117 lo0
> > 192.168.1 link#5 UC 0 0 fxp0
> > 192.168.1.25 00:05:5d:4d:19:58 UHLW 1 0 fxp0
> > 192.168.1.45 00:11:43:b6:a1:55 UHLW 1 0 fxp0
> > 192.168.1.71 00:0c:f1:b9:38:50 UHLW 1 1645 fxp0
> > 192.168.1.84 00:04:23:af:79:66 UHLW 1 0 fxp0
> > 192.168.1.112 00:30:4f:21:3b:8a UHLW 1 0 fxp0
> > 192.168.1.196 00:07:e9:40:1f:c5 UHLW 1 0 fxp0
> > 192.168.1.199 00:e0:81:21:28:21 UHLW 1 0 fxp0
> > 192.168.1.200 00:30:4f:03:88:03 UHLW 1 0 fxp0
> >
> >
> > when the information I was actually looking for is:
> >
> > root@brad:0:/usr/home/src/FreeBSD-6/src/usr.bin/netstat# netstat -rnfinet
> > Routing tables
> >
> > Internet:
> > Destination Gateway Flags Refs Use Netif
> > Expire default 10.1.1.244 UGS 0 31016
> > rl0 10.1.1/24 link#1 UC 0 0 rl0
> > 127.0.0.1 127.0.0.1 UH 0 1117 lo0
> > 192.168.1 link#5 UC 0 0 fxp0
> > root@brad:0:/usr/home/src/FreeBSD-6/src/usr.bin/netstat#
> >
> >
> > The attachment patch ("cvs diff -u -rHEAD route.c" generated) prints
> > link-layer generated routes when -a is specified and ignores them
> > the rest of the time.
> >
> > Thoughts? POLA violation?
>
> Just use:
>
> netstat -rn | awk '$3 !~ /L/ { print }'
That's exactly the point Eugene, I don't want to find ways to filter it out.
It happens frequently. I didn't say it's difficult to remove it, I just don't
want it there all the time. That's why you can use -a to get the old
behavior.
>
> Eugene
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