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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [FW1] Cisco 2621
Paul, You cannot have 2 interfaces on the same subnet, the router is designed to be between subnets. What Mask are you using? I presume that your 10.0.0.0 network is subneted somehow. This will determine how you split your network up. I would also recommend that if you are building this from scratch that you plan your network addressing up front to allow for expansion in the future. And the last thing, you cannot put a broadcast address on a router interface. The way that IP works is it will compare the IP to the Mask to determine if the target is on the same subnet, if the IP appears to be local it will not route it. As a result, if you have 2 machines in the same IP subnet on 2 segments they will not talk through the router (unless is configured as a bridge of course). HTH Russell Goodwin -----Original Message----- From: Paul Messer [mailto:[email protected]] Sent: 16 October 2000 11:22 To: [email protected] Subject: [FW1] Cisco 2621 Dear All, slightly off topic ..but I know where the expertise lays on this type of subject....... We have a Cisco 2621 router (not yet in use)...and we want it to serve our 4 site WAN. We have FW1 running on an NT box and the 2621 has two ethernet ports, one to plug the internal side of the firewall in to and the other to plug the local Basingstoke network into. Three of the remaining 4 serial ports are for the remaining 3 sites of our WAN. Firewall Internal Interface IP address = 10.10.10.10 2621 Ethernet 0 IP address = 10.10.10.1 (for historical reasons) When I try and give Ethernet 1 the ip address = 10.10.10.2 I get a message from the router stating that the ip address on interface 0 overlaps...does anyone know of any way that I can set the ip addresses on the ethernet port to be the same network i.e. a broadcast ? The only other idea I have is to give it another ip network and route between the two..is this the only way or are there any sensible solutions.... Currently we have separate routers for each WAN connection and the Firewall box plugs straight into our Basingstoke network switch which obviously adds a bottleneck in that every packet destined for the internet has to go via the Basingstoke network. Any help greatfully revceived...... Paul. ============================================================================ ==== To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ============================================================================ ==== ================================================================================ To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================================================
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