[567] in linux-net channel archive
Problem with static routes, gated 3_5Alpha_11
daemon@ATHENA.MIT.EDU (Drew Eckhardt)
Fri Jun 23 13:42:53 1995
To: gated-alpha@gated.cornell.edu, linux-net@vger.rutgers.edu
Date: Fri, 23 Jun 1995 09:56:22 -0600
From: Drew Eckhardt <drew@poohsticks.org>
I'm running gated 3_5Alpha_11 under Linux 1.2.10, libc 5.0.9,
built with GCC 2.6.3 (ELF), with the following configuration :
traceoptions "/var/adm/gated.log" replace size 1m files 2 general policy ;
# Define all dynamic interfaces here. Otherwise, we only deal with
# interfaces which were up when gated started.
interfaces {
# define 192.168.1.17 netmask 255.255.255.240 ;
define hub-to-drew pointtopoint drew-to-hub netmask 255.255.255.240 ;
} ;
# Route via RIP
rip yes {
nobroadcast ;
sourcegateways hub-to-drew ;
} ;
hello no ;
ospf no ;
egp no ;
bgp no ;
# Setup "static" routes with worst preference to all dynamic nets which
# will propogate routing information to us. 192.168.1.17 is a virtual
# interface which has the kernel filtering code setup to block all packets.
static {
198.137.146.64 mask-length 28 gateway 192.168.1.17 preference 255 ;
198.137.146.32 mask-length 28 gateway 192.168.1.17 preference 255 ;
198.137.146.80 mask-length 28 gateway 192.168.1.17 preference 255 ;
198.137.146.48 mask-length 28 gateway 192.168.1.17 preference 255 ;
} ;
And my IP interfaces setup as follows :
lo Link encap:Local Loopback
inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
UP BROADCAST LOOPBACK RUNNING MTU:2000 Metric:1
eth0 Link encap:10Mbps Ethernet HWaddr 00:AA:00:0C:E8:34
inet addr:198.137.146.99 Bcast:198.137.146.111 Mask:255.255.255.240
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
dummy0 Link encap:10Mbps Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.1.17 Bcast:192.168.1.31 Mask:255.255.255.240
UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1
With this interface dynamically added by a keepalive script :
sl0 Link encap:VJ Serial Line IP
inet addr:198.137.146.27 P-t-P:198.137.146.26 Mask:255.255.255.240
UP POINTOPOINT RUNNING MTU:296 Metric:1
My problem is that when gated sees any of those static routes, they get added
to the kernel with a netmask of 255.255.255.0 instead of the requested
255.255.255.240 - Ie, I get a route to network 198.137.146.0; and it doesn't
get deleted when I get routes to those nets via RIP.
It logs the right things as being added :
Jun 22 22:57:37 trace_on: Tracing to "/var/adm/gated.log" started
Jun 22 22:57:37
Jun 22 22:57:37 Tracing flags enabled: general policy
Jun 22 22:57:37
Jun 22 22:57:38 inet_routerid_notify: Router ID: 198.137.146.99
Jun 22 22:57:38
Jun 22 22:57:38
Jun 22 22:57:38 krt_rtread: Initial routes read from kernel (via /proc/net/route):
ADD 192.168.1.17 255.255.255.255 gw 192.168.1.17 Kernel pref -254/0 metric 0/0 dummy0 <NotInstall NoAdvise Int Hidden Gateway>
ADD 192.168.1.17 255.255.255.255 Kernel pref 0/0 metric 0/0 <NoAdvise Active Gateway>
CHANGE 192.168.1.17 255.255.255.255 Kernel pref 0/0 metric 0/0 <NoAdvise Delete Gateway>
RELEASE 192.168.1.17 255.255.255.255 gw 192.168.1.17 Kernel pref -254/0 metric 0/0 dummy0 <NotInstall NoAdvise Int Release Gateway>
ADD 192.168.1.16 255.255.255.240 gw 192.168.1.17 Kernel pref -254/0 metric 0/0 dummy0 <NotInstall NoAdvise Int Hidden Gateway>
ADD 192.168.1.16 255.255.255.240 Kernel pref 0/0 metric 0/0 <NoAdvise Active Gateway>
CHANGE 192.168.1.16 255.255.255.240 Kernel pref 0/0 metric 0/0 <NoAdvise Delete Gateway>
RELEASE 192.168.1.16 255.255.255.240 gw 192.168.1.17 Kernel pref -254/0 metric 0/0 dummy0 <NotInstall NoAdvise Int Release Gateway>
ADD 198.137.146.96 255.255.255.240 gw 198.137.146.99 Kernel pref -254/0 metric 0/0 eth0 <NotInstall NoAdvise Int Hidden Gateway>
ADD 198.137.146.96 255.255.255.240 Kernel pref 0/0 metric 0/0 <NoAdvise Active Gateway>
CHANGE 198.137.146.96 255.255.255.240 Kernel pref 0/0 metric 0/0 <NoAdvise Delete Gateway>
RELEASE 198.137.146.96 255.255.255.240 gw 198.137.146.99 Kernel pref -254/0 metric 0/0 eth0 <NotInstall NoAdvise Int Release Gateway>
Jun 22 22:57:38 rt_close: 12 routes proto KRT
Jun 22 22:57:38
Jun 22 22:57:38 if_rtup: ADD route for interface lo 127.0.0.1/255.255.255.255
ADD 127.0.0.1 255.255.255.255 gw 127.0.0.1 Direct pref 0/0 metric 0/0 lo <NoAdvise Active Retain>
Jun 22 22:57:38 rt_close: 1 route proto IF
Jun 22 22:57:38
Jun 22 22:57:38 if_rtup: ADD route for interface eth0 198.137.146.99/255.255.255.240
ADD 198.137.146.96 255.255.255.240 gw 198.137.146.99 Direct pref 0/0 metric 0/0 eth0 <Int Active Retain>
Jun 22 22:57:38 rt_close: 1 route proto IF
Jun 22 22:57:38
Jun 22 22:57:38 if_rtup: ADD route for interface dummy0 192.168.1.17/255.255.255.240
ADD 192.168.1.16 255.255.255.240 gw 192.168.1.17 Direct pref 0/0 metric 0/0 dummy0 <Int Active Retain>
Jun 22 22:57:38 rt_close: 1 route proto IF
Jun 22 22:57:38
Jun 22 22:57:38
Jun 22 22:57:38 ***Routes are being installed in kernel
Jun 22 22:57:38
Jun 22 22:57:38
Jun 22 22:57:38 Commence routing updates
Jun 22 22:57:38
Jun 22 22:57:38 inet_routerid_notify: Router ID: 198.137.146.99
Jun 22 22:57:38
ADD 127 255 gw 127.0.0.1 Static pref 0/0 metric 0/0 lo <NoAdvise Int Active Reject>
ADD 198.137.146.32 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Active Gateway>
ADD 198.137.146.48 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Active Gateway>
ADD 198.137.146.64 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Active Gateway>
ADD 198.137.146.80 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Active Gateway>
Jun 22 22:57:38 rt_close: 5 routes proto RT
Jun 22 22:57:38
Jun 22 22:57:38
Jun 22 22:57:38 rt_new_policy: new policy started with 9 entries
KRT RT ERROR 127 mask 255 router 127.0.0.1 flags <>0: reject routes not supported
Jun 22 22:57:38
Jun 22 22:57:38 krt_flash: WARNING! REJECT ROUTES NOT SUPPORTED!
Jun 22 22:57:38
RELEASE 192.168.1.16 255.255.255.240 Kernel pref 0/0 metric 0/0 <NoAdvise Delete Release Gateway>
RELEASE 198.137.146.96 255.255.255.240 Kernel pref 0/0 metric 0/0 <NoAdvise Delete Release Gateway>
Jun 22 22:57:38 rt_new_policy: new policy ended with 9 entries
Jun 22 22:57:38
Jun 22 22:57:38 target_build: ALLOC 127.0.0.1 -> 127.0.0.1 interface 127.0.0.1(lo) flags <Broadcast>
Jun 22 22:57:38 target_build: ALLOC 198.137.146.99 -> 198.137.146.111 interface 198.137.146.99(eth0) flags <Broadcast>
Jun 22 22:57:38 target_build: ALLOC 192.168.1.17 -> 192.168.1.31 interface 192.168.1.17(dummy0) flags <Broadcast>
Jun 22 22:57:38 rip_target_list: just listening
Jun 22 22:57:38
RELEASE 192.168.1.17 255.255.255.255 Kernel pref 0/0 metric 0/0 <NoAdvise Delete Release Gateway>
Jun 22 22:58:00 task_terminate: first terminate signal received
RELEASE 127 255 gw 127.0.0.1 Static pref 0/0 metric 0/0 lo <NoAdvise Int Release Reject>
CHANGE 198.137.146.32 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Delete Gateway>
CHANGE 198.137.146.48 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Delete Gateway>
CHANGE 198.137.146.64 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Delete Gateway>
CHANGE 198.137.146.80 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Delete Gateway>
Jun 22 22:58:00 rt_close: 5 routes proto RT
Jun 22 22:58:00
Jun 22 22:58:00 target_free: FREE 127.0.0.1 -> 127.0.0.1 interface 127.0.0.1(lo) flags <Broadcast>
Jun 22 22:58:00 target_free: FREE 198.137.146.99 -> 198.137.146.111 interface 198.137.146.99(eth0) flags <Broadcast>
Jun 22 22:58:00 target_free: FREE 192.168.1.17 -> 192.168.1.31 interface 192.168.1.17(dummy0) flags <Broadcast>
Jun 22 22:58:00
Jun 22 22:58:00 rt_flash_update: updating kernel with 4 entries
RELEASE 198.137.146.32 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Delete Release Gateway>
RELEASE 198.137.146.48 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Delete Release Gateway>
RELEASE 198.137.146.64 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Delete Release Gateway>
RELEASE 198.137.146.80 255.255.255.240 gw 192.168.1.17 Static pref 255/0 metric 0/0 dummy0 <Int Delete Release Gateway>
Jun 22 22:58:00
Jun 22 22:58:00 Exit gated[900] version R3_5Alpha_11
Jun 22 22:58:00
Suggestions?
