"no ip directed-broadcast" set.May there is a way to stop router answer on requests to broadcast address?Net subnetted with 6 subnets so 12 extra access-list rules not seems agood idea.
The problem is: software.NM-16ESW on 26xx series supported only by 12.2(2)XT. Am I wrong here?2610XM support added in 12.2(8)T1. Am I wrong here?So, is there NO software can work with this combination?Then why it said that 2610 & 26...
Yes, "no ip directed-broadcast" is on by default but is only disables translation directed-broadcast to Layer2 broadcast(s) and do nothing withrouter's replys. Router will issue net-unreach only if interface associated with network is down. Still it...
Here is a quote from rfc2644 (bcp34): Directed Broadcast - a broadcast directed to the specified network prefix. It MUST NOT be used as a source address. A router MAY originate Network Directed Broadcast packets. A router MAY have a ...
I still got icmp echo replys from router when send request to directed-broadcast address ( both to [subnet | 0] and [subnet | -1].It's not forwarded. It's just handled as if destination ip was the router.
Now I've found document where said that 12.2(2)XT is only release withNM-16ESW support.http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis2600/hw_inst/nm_inst/nm-doc/ovrnetm.htmTable 1-1:-----16-Port Ethernet SwitchSpecific Limited Lif...
