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Home > Archive > CCNP > February 2003 > multiple gateways on 1 router
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multiple gateways on 1 router
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| adilux 2003-02-12, 1:19 pm |
| I have a cisco 1720 router, and i have one Ethernet port connecting to ISP #1, and an open slot, i want to plut in another ehternet card for ISP #2, is it possible to have two gateways, like a default gatetway and a secondary gateway, and the commands to configure, if anyone knows.
the IOS version is 12.2(4)T it is used to support VPN Ipsec. but i want to keep this IOS as much as possible.
thanks | |
| darthfeces 2003-02-12, 1:44 pm |
| depends if you want redundancy, load-balancing or a failover link.
a floating default route could handle the failure of the primary link.
the options are also affect by the routing protocol you use.
you can do anything you want with bgp. | |
| adilux 2003-02-12, 1:48 pm |
| thanks,
it's good to hear, i want a failover option.
do you know the basic commands i need to configure it. I tried looking in the menus,
the default is
router(conf)#>ip default-gateway .......
but can't find the option to put in a second one, or would i need the card installed first before i can do anything like that.?? | |
| Widgewaam 2003-02-14, 3:13 am |
| Like Darthfeces said, use a floating static route. You make one link a static default which has a default administrative distance of 0 or 1 depending on how you implement it, then have a route to the second isp with an administrative distance of 2. Should work fine. Don't bother messing with BGP. Why would you want to pay for a link that you're not going to use? Or will this be a frame relay link? You should use load balancing. HTH |
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