in ur case u need to run the ASA in transparant mode
in this case the ASA will work as a layer two device will not participat in any layer three addressing things and u can put it between two devices in the same ip addressing subnet
for example if u have PC >> ASA transparant mode>> router
the PC default gateway will be thw router
so if u have
Router with rip >>ASA transparnt mode>>> router with rip
those two routers can comunicate as in the same network as they connected to aswitch
however u need to permit the traffic through the ASA
just permit ip traffic for rip and multicasting for rip updates and thats it
have a look at the following link
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In transparent mode you can do this for sure. As in the 'Layer 2' mode of the firewall.
In the routed mode, you can make a GRE tunnel between the two devices and run inside it. You will then allow this GRE through the ASA.
ok, works in transparent mode, and will need a GRE tunnel to go thru routed mode... routed mode is required for the site where the 5510 is going to
one more favor; need a white page for setting up a GRE tunnel for this purpose
I could only find one link for GRE on the DOC-CD which is little different from your requimrent:
There is one with GRE OVER IPSEC:
yeah, I am unable to locate much of anything.
this is it:
The link you sent is to allow L2TP or PPTP though firewall. It has no direct relation to this discussion. If you want to permit GRE then you can use a similar ACL as the link, as PPTP also uses GRE. But other than that, this link is not what you are looking for.
right, but it's the only reference to a GRE ACL for a ASA that I could find.
I not so sure a GRE tunnel for IOS routers is what would work either.
this link for router to router gre over IPSEC
if u want only gre ignore the ipsec configs
and the following one contains lots of gre config links
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