freebsd-src/sbin/route
Ruslan Ermilov 1d36c8992d When changing an indirect route, kernel routing code allocates
a route to the gateway and caches it in the route structure.
It may happen (if the routing table is screwed) that the gateway
route is the same route as the one being modified, in which case
a kernel reports EDQUOT.  Be more verbose about this:

# route add -net 10 192.168.4.65
add net 10: gateway 192.168.4.65
# netstat -rn -finet
Routing tables

Internet:
Destination        Gateway            Flags     Refs     Use     Netif Expire
default            192.168.4.65       UGSc        1        7      rl0
10                 192.168.4.65       UGSc        0        0      rl0
127.0.0.1          127.0.0.1          UH          0      178      lo0
192.168.4          link#1             UC          2        0      rl0 =>
192.168.4.65       0:d0:b7:16:9c:c6   UHLW        2        0      rl0   1123

Before:

# route change -net 10 10.0.0.1
route: writing to routing socket: Disc quota exceeded
change net 10: gateway 10.0.0.1: Disc quota exceeded

After:

# ./route change -net 10 10.0.0.1
route: writing to routing socket: Disc quota exceeded
change net 10: gateway 10.0.0.1: gateway uses the same route

PR:		bin/1093, misc/26833
2001-06-08 12:44:25 +00:00
..
keywords udp IPv6 support, IPv6/IPv4 tunneling support in kernel, 1999-12-07 17:39:16 +00:00
Makefile - Backout botched attempt to introduce MANSECT feature. 2001-03-26 14:33:27 +00:00
route.8 When changing an indirect route, kernel routing code allocates 2001-06-08 12:44:25 +00:00
route.c When changing an indirect route, kernel routing code allocates 2001-06-08 12:44:25 +00:00