Date: Tue, 15 Feb 2000 21:07:26 -0800 (PST) From: Jin Guojun (FTG staff) <jin@george.lbl.gov> To: freebsd-bugs@FreeBSD.ORG, ru@FreeBSD.ORG Subject: Re: bin/2258: route add/delete [network] xxx.yyy.zzz.0 my-IP Message-ID: <200002160507.VAA23974@george.lbl.gov>
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Nothing seems having been fixed at this point. # uname -r 4.0-20000210-CURRENT # netstat -r Routing tables Internet: Destination Gateway Flags Netif Expire default adsl-63-198-35-121 UGSc ep0 adsl-63-198-35-120 link#2 UC ep0 => adsl-63-198-35-121 0:10:67:0:4b:75 UHLW ep0 1037 # route add default 128.33.196.11 1 add net default: gateway 128.33.196.11 # netstat -r Routing tables Internet: Destination Gateway Flags Netif Expire ^C spode# !!n netstat -rn Routing tables Internet: Destination Gateway Flags Netif Expire 0&0x1 128.33.196.11 UGSc ep0 => default 63.198.35.121 UGSc ep0 63.198.35.120/29 link#2 UC ep0 => 63.198.35.121 0:10:67:0:4b:75 UHLW ep0 983 127.0.0.1 127.0.0.1 UH lo0 # route delete default 128.33.196.11 delete net default: gateway 128.33.196.11 spode# netstat -r Routing tables Internet: Destination Gateway Flags Netif Expire ^C spode# !!n netstat -rn Routing tables Internet: Destination Gateway Flags Netif Expire 0&0x1 128.33.196.11 UGSc ep0 63.198.35.120/29 link#2 UC ep0 => 63.198.35.121 0:10:67:0:4b:75 UHLW ep0 948 127.0.0.1 127.0.0.1 UH lo0 # traceroute ftp.freebsd.org ^C # traceroute 209.155.82.18 traceroute to 209.155.82.18 (209.155.82.18), 30 hops max, 40 byte packets 1 *^C Now, no more network connection, the system needs to be reboot. Here is two critical parts: (1) route should never try to add second "default" if the default router is alread set. (2) "route delete " did not correctly remove the specified item. regards, -Jin ------------- original message ------------- Synopsis: route add/delete [network] xxx.yyy.zzz.0 my-IP State-Changed-From-To: open->closed State-Changed-By: ru State-Changed-When: Tue Jan 25 06:56:21 PST 2000 State-Changed-Why: The third argument of the route(8) (in the "old form") is treated as a netmask value, so the following command # route add 198.207.143.0 127.0.0.1 1 is, in fact, only a short equivalent of the # route add -net 198.207.143.0 -netmask 1 127.0.0.1 You can see this with the following (non-destructive) command: # route -vnt add -net 198.207.143.0 -netmask 1 127.0.0.1 [...] sockaddrs: <DST,GATEWAY,NETMASK> 198.207.143.0 127.0.0.1 0.0.0.1 add net 198.207.143.0: gateway 127.0.0.1 Applying mask of 0.0.0.1 to 198.207.143.0 gives 0.0.0.0/0.0.0.1. That is what is actually stored in the kernel routing table. To delete this entry, simply execute: # route delete 0 -netmask 1 To dump the entire routing table (note the magic -d option), run: # route -vnd flush Actually, the only problem is the way netstat(1) reports "default" route for (in fact) non-default routes, but this has already been fixed in 4.0-CURRENT (see src/sbin/route/route.c,v 1.41). I will be MFC'ing this into -STABLE right now. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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