RE: hsrp question..a tough one for me
Nope. Each router need one ip and the virtual ip will be all computer's gateway. That means you need to use 3 ip addresses. You only have 11 to use. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of ipguru Sent: Thursday, January 11, 2001 12:09 PM To: [EMAIL PROTECTED] Subject: hsrp question..a tough one for me A question was recently posed: Two routers-subnet for 12 hosts. Do hsrp. naturally you assume a subnet for 14 hosts, one address each for router a and b. then don't you need an address for the virtual ip for hsrp. This only leaves 11 host addresses available. My question was, "can you use one of the addresses from one of the routers for the virtual ip address for hsrp". This would put you back up to 12 host addresses. Is this the right answer? thanks, bk _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: hsrp question..a tough one for me
no. You need 1 ip per router; besides the ip for the virtual. You cannot use an ip that belongs to either physical interface nor ip's of any of the devices that make up the network. The ip you chose for the virtual hsrp will have its own virtual hardware address given by the router- this would also be a good reason why 1 ip cannot be shared. good luck. Raul. From: ipguru [EMAIL PROTECTED] Reply-To: ipguru [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: hsrp question..a tough one for me Date: Thu, 11 Jan 2001 11:09:05 -0600 A question was recently posed: Two routers-subnet for 12 hosts. Do hsrp. naturally you assume a subnet for 14 hosts, one address each for router a and b. then don't you need an address for the virtual ip for hsrp. This only leaves 11 host addresses available. My question was, "can you use one of the addresses from one of the routers for the virtual ip address for hsrp". This would put you back up to 12 host addresses. Is this the right answer? thanks, bk _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: hsrp question..a tough one for me
You CAN'T use one of your physical router IP addresses for the virtual. There will be problems with the MAC addresses learned and cached by your clients. The MAC address for the virtual router is virtual, the MAC address for the router is physical. The correct answer would be to 1)re-address your network (using a subnet mask other than 240), allowing more IP addresses, 2)use DHCP with a short lease period and lease IP addresses as needed, or 3)use ip unnumbered on the routers freeing two IP addresses and then using one of the freed addresses for your virtual. I have tried "3" in lab, and it worked fine. There are probably more solutions, but these were from the top of my head. HTH, Evan -Original Message- From: ipguru [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 11, 2001 11:09 AM To: [EMAIL PROTECTED] Subject: hsrp question..a tough one for me A question was recently posed: Two routers-subnet for 12 hosts. Do hsrp. naturally you assume a subnet for 14 hosts, one address each for router a and b. then don't you need an address for the virtual ip for hsrp. This only leaves 11 host addresses available. My question was, "can you use one of the addresses from one of the routers for the virtual ip address for hsrp". This would put you back up to 12 host addresses. Is this the right answer? thanks, bk _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: hsrp question..a tough one for me
Thanks! That is the answer i was looking for! Evan Francen wrote: You CAN'T use one of your physical router IP addresses for the virtual. There will be problems with the MAC addresses learned and cached by your clients. The MAC address for the virtual router is virtual, the MAC address for the router is physical. The correct answer would be to 1)re-address your network (using a subnet mask other than 240), allowing more IP addresses, 2)use DHCP with a short lease period and lease IP addresses as needed, or 3)use ip unnumbered on the routers freeing two IP addresses and then using one of the freed addresses for your virtual. I have tried "3" in lab, and it worked fine. There are probably more solutions, but these were from the top of my head. HTH, Evan -Original Message- From: ipguru [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 11, 2001 11:09 AM To: [EMAIL PROTECTED] Subject: hsrp question..a tough one for me A question was recently posed: Two routers-subnet for 12 hosts. Do hsrp. naturally you assume a subnet for 14 hosts, one address each for router a and b. then don't you need an address for the virtual ip for hsrp. This only leaves 11 host addresses available. My question was, "can you use one of the addresses from one of the routers for the virtual ip address for hsrp". This would put you back up to 12 host addresses. Is this the right answer? thanks, bk _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
