Can't set default route to outside interface

Can't set default route to outside interface

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Subject Author Date
Can't set default route to outside interface tomarseneault 05-29-2008
Posted by tomarseneault on May 29, 2008, 10:12 pm
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All,

I have a 2811 with the advanced security feature pack. I'm configuring
it to replace our old pix and 2621 but I can't set the default route
to an "outside" interface (FastEthernet0/1), I can set it to an inside
interface easy enough. The line in the config file is the same for
both setups:

ip route 0.0.0.0 0.0.0.0 FastEthernet0/0

ip route 0.0.0.0 0.0.0.0 FastEthernet0/1

But when I enter in the 2nd line I get "Gateway of last resort is not
set". I have tried using the IP of the next hop router as well, same
results. I also compared it to our existing 2621 and it looks the
same. Here are the interface setups:

interface FastEthernet0/0
description Inside$ES_LAN$$ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0/0$
$FW_INSIDE$
ip address 10.10.3.1 255.255.255.0
ip access-group 100 in
ip nat inside
ip virtual-reassembly
duplex full
speed 100
!
interface FastEthernet0/1
description Outside$ES_WAN$$ETH-WAN$$FW_OUTSIDE$
ip address 65.123.2.2 255.255.255.128
ip access-group 101 in
ip verify unicast reverse-path
ip inspect SDM_LOW out
ip nat outside
ip virtual-reassembly
duplex full
speed 100
crypto map SDM_CMAP_1
!

Could there be something in the ACLs that are causing problems? Is
there any other information you all need to help with this?


Pure Networks
Posted by Andrew Lutov on May 30, 2008, 12:34 am
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Hello, tomarseneault!

t> I have a 2811 with the advanced security feature pack. I'm configuring
t> it to replace our old pix and 2621 but I can't set the default route
t> to an "outside" interface (FastEthernet0/1), I can set it to an inside
t> interface easy enough. The line in the config file is the same for
t> both setups:

t> ip route 0.0.0.0 0.0.0.0 FastEthernet0/0

Default route to inside network?

t> ip route 0.0.0.0 0.0.0.0 FastEthernet0/1


Change route records to:

ip route 0.0.0.0 0.0.0.0 ip.add.ress.GATE1
ip route 0.0.0.0 0.0.0.0 ip.add.ress.GATE2



t> But when I enter in the 2nd line I get "Gateway of last resort is not
t> set". I have tried using the IP of the next hop router as well, same
t> results. I also compared it to our existing 2621 and it looks the
t> same. Here are the interface setups:

t> interface FastEthernet0/0
t> description Inside$ES_LAN$$ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0/0$
t> $FW_INSIDE$
t> ip address 10.10.3.1 255.255.255.0
t> ip access-group 100 in
t> ip nat inside
t> ip virtual-reassembly
t> duplex full
t> speed 100
t> !
t> interface FastEthernet0/1
t> description Outside$ES_WAN$$ETH-WAN$$FW_OUTSIDE$
t> ip address 65.123.2.2 255.255.255.128
t> ip access-group 101 in
t> ip verify unicast reverse-path
t> ip inspect SDM_LOW out
t> ip nat outside
t> ip virtual-reassembly
t> duplex full
t> speed 100
t> crypto map SDM_CMAP_1
t> !


With best regards, Andrew Lutov. E-mail: andrew_l @ newmail.ru



Posted by Merv on May 30, 2008, 4:24 am
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> Hello, tomarseneault!
>
> t> I have a 2811 with the advanced security feature pack. I'm configuring
> t> it to replace our old pix and 2621 but I can't set the default route
> t> to an "outside" interface (FastEthernet0/1), I can set it to an inside
> t> interface easy enough. The line in the config file is the same for
> t> both setups:
>
> t> ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
>
> Default route to inside network?
>
> t> ip route 0.0.0.0 0.0.0.0 FastEthernet0/1
>
> Change route records to:
>
> ip route 0.0.0.0 0.0.0.0 ip.add.ress.GATE1
> ip route 0.0.0.0 0.0.0.0 ip.add.ress.GATE2
>
> t> But when I enter in the 2nd line I get "Gateway of last resort is not
> t> set". I have tried using the IP of the next hop router as well, same
> t> results. I also compared it to our existing 2621 and it looks the
> t> same. Here are the interface setups:
>
> t> interface FastEthernet0/0
> t> description Inside$ES_LAN$$ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0/0$
> t> $FW_INSIDE$
> t> ip address 10.10.3.1 255.255.255.0
> t> ip access-group 100 in
> t> ip nat inside
> t> ip virtual-reassembly
> t> duplex full
> t> speed 100
> t> !
> t> interface FastEthernet0/1
> t> description Outside$ES_WAN$$ETH-WAN$$FW_OUTSIDE$
> t> ip address 65.123.2.2 255.255.255.128
> t> ip access-group 101 in
> t> ip verify unicast reverse-path
> t> ip inspect SDM_LOW out
> t> ip nat outside
> t> ip virtual-reassembly
> t> duplex full
> t> speed 100
> t> crypto map SDM_CMAP_1
> t> !
>
> With best regards, Andrew Lutov. E-mail: andrew_l @ newmail.ru


try configuring:

ip routing
ip clasless

to see if it makes any difference

Posted by tomarseneault on May 30, 2008, 3:35 pm
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This turned out to be a "well duh" on my test bench I only had the
inside interface plugged in to do the configuration but it turns out
that the interface has to be up in order for the cisco the even think
about routing out it, once I plugged the outside interface into a
switch: boom everything started working. Thanks for your help.

Tom

> All,
>
> I have a 2811 with the advanced security feature pack. I'm configuring
> it to replace our old pix and 2621 but I can't set the default route
> to an "outside" interface (FastEthernet0/1), I can set it to an inside
> interface easy enough. The line in the config file is the same for
> both setups:
>
> ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
>
> ip route 0.0.0.0 0.0.0.0 FastEthernet0/1
>
> But when I enter in the 2nd line I get "Gateway of last resort is not
> set". I have tried using the IP of the next hop router as well, same
> results. I also compared it to our existing 2621 and it looks the
> same. Here are the interface setups:
>
> interface FastEthernet0/0
> description Inside$ES_LAN$$ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0/0$
> $FW_INSIDE$
> ip address 10.10.3.1 255.255.255.0
> ip access-group 100 in
> ip nat inside
> ip virtual-reassembly
> duplex full
> speed 100
> !
> interface FastEthernet0/1
> description Outside$ES_WAN$$ETH-WAN$$FW_OUTSIDE$
> ip address 65.123.2.2 255.255.255.128
> ip access-group 101 in
> ip verify unicast reverse-path
> ip inspect SDM_LOW out
> ip nat outside
> ip virtual-reassembly
> duplex full
> speed 100
> crypto map SDM_CMAP_1
> !
>
> Could there be something in the ACLs that are causing problems? Is
> there any other information you all need to help with this?


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