Why note this info downBecause this is done once in a blue moon and is non-obvious |
After setting up the generic standard network stuff in setup and Linuxconf - everything should be OK and ready for you to start adding IP alias addresses(Many internet HOW-To's on this subject are not applicable to Redhat 7.3 in using the route command)Ignore all the following which was based on information gained on the internet and looks incorrect - for Redhat 7.3 at least?
http://www.firstalt.co.uk/sample/la2.pdf
http://www.tldp.org/HOWTO/HOWTO-INDEX/categories.html http://ftp.linux.org.uk/pub/linux/Networking/docs/Using-Route vi /etc/sysconfig/static-routes and in this case, add the following telling which ethernet card to use which gateway/router:
eth1 net 193.61.32.0 netmask 255.255.255.0 gw 193.61.32.245 eth0 net 193.61.34.0 netmask 255.255.254.0 gw 193.61.34.245 Check: /etc/sysconfig/network Reboot and if you do netstat -rn you should get something like: route
[ccp14@mill rc.d]# netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 193.61.32.0 0.0.0.0 255.255.255.0 U 40 0 0 eth1 193.61.34.0 0.0.0.0 255.255.254.0 U 40 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 40 0 0 lo 0.0.0.0 193.61.32.245 0.0.0.0 UG 40 0 0 eth1
ifconfig -a should give something like the following
[root@mill root]# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:02:B3:63:EF:43
inet addr:193.61.35.89 Bcast:193.61.35.255 Mask:255.255.254.0
UP BROADCAST NOTRAILERS RUNNING MTU:1500 Metric:1
RX packets:2489300 errors:0 dropped:0 overruns:0 frame:0
TX packets:27034 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:214548375 (204.6 Mb) TX bytes:2219890 (2.1 Mb)
Interrupt:5 Base address:0x1000
eth1 Link encap:Ethernet HWaddr 00:02:B3:63:EF:35
inet addr:193.61.32.160 Bcast:193.61.32.255 Mask:255.255.255.0
UP BROADCAST NOTRAILERS RUNNING MTU:1500 Metric:1
RX packets:162821 errors:0 dropped:0 overruns:0 frame:1
TX packets:48863 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:81052332 (77.2 Mb) TX bytes:2639558 (2.5 Mb)
Interrupt:10 Base address:0x3000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:22 errors:0 dropped:0 overruns:0 frame:0
TX packets:22 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1616 (1.5 Kb) TX bytes:1616 (1.5 Kb)
Test:
snarf http://www.ccp14.ac.uk/ccp/web-mirrors/farrugia/~louis/software/wingx/wgx_164.zip snarf http://www.ccp14.cryst.bbk.ac.uk/ccp/web-mirrors/farrugia/~louis/software/wingx/wgx_164.zip
OUTPUT
The output of the kernel routing table is organized in the
following columns
Destination
The destination network or destination host.
Gateway
The gateway address or '*' if none set.
Genmask
The netmask for the destination net;
'255.255.255.255' for a host destination and
'0.0.0.0' for the default route.
Flags Possible flags include
U (route is up)
H (target is a host)
G (use gateway)
R (reinstate route for dynamic routing)
D (dynamically installed by daemon or redirect)
M (modified from routing daemon or redirect)
A (installed by addrconf)
C (cache entry)
! (reject route)
SYNOPSIS
route [-CFvnee]
route [-v] [-A family] add [-net|-host] target [netmask
Nm] [gw Gw] [metric N] [mss M] [window W] [irtt I]
[reject] [mod] [dyn] [reinstate] [[dev] If]
route [-v] [-A family] del [-net|-host] target [gw Gw]
[netmask Nm] [metric N] [[dev] If]
route [-V] [--version] [-h] [--help]
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