Re: [j-nsp] proxy arp C vs J

2012-02-20 Thread Mark Tinka
On Wednesday, February 08, 2012 08:10:59 AM Gordon Smith wrote: > Proxy ARP can be useful while sorting out a broken > (misconfigured) network, but can also cause you a lot of > grief. > If the network is configured correctly, it's just a > hindrance. Most definitely turn it off, then fix any > r

Re: [j-nsp] proxy arp C vs J

2012-02-07 Thread Gordon Smith
t: Tuesday, 7 February 2012 5:57 a.m. To: juniper-nsp@puck.nether.net Subject: [j-nsp] proxy arp C vs J Hi Guys We are experiencing some issues in one of our client sites, Basically we migrate from a Cisco to a Juniper MX80, and since there has been some issues, mainly we are seeing IP addre

Re: [j-nsp] proxy arp C vs J

2012-02-07 Thread Jonathan Lassoff
On Tue, Feb 7, 2012 at 2:23 AM, Alex Arseniev wrote: > Did you check what MACs are used in 1st, 2nd and 3rd time? Specifically MAC > OUIs. > I suspect this is a side effect of having C-J in the same broadcast domain. > Basically, when J-interface ARPs for a connected host, _AND_ if C has a > speci

Re: [j-nsp] proxy arp C vs J

2012-02-07 Thread Alex Arseniev
have seen this myself many times and I suggest to disable proxy-arp on C to get rid of this behavior. HTH Thanks Alex - Original Message - From: "biwa net" To: Sent: Monday, February 06, 2012 7:57 PM Subject: Re: [j-nsp] proxy arp C vs J Forgot to add we are running MX8

Re: [j-nsp] proxy arp C vs J

2012-02-07 Thread Mark Tinka
On Tuesday, February 07, 2012 03:57:55 AM biwa net wrote: > Forgot to add we are running MX80 on Junos 11.2 Can you send a sample topology and your interface configurations for the Cisco and Juniper routers? Mark. signature.asc Description: This is a digitally signed message part. ___

Re: [j-nsp] proxy arp C vs J

2012-02-06 Thread Per Granath
Try the command: no-gratuitous-arp-request > > Basically we migrate from a Cisco to a Juniper MX80, and since there > > has been some issues, mainly we are seeing IP addresses being shared > > by 2-3 mac address, to be precise , mac address being rewritten , ie: > > one IP is being seen on the Ju

Re: [j-nsp] proxy arp C vs J

2012-02-06 Thread biwa net
Forgot to add we are running MX80 on Junos 11.2 On 6 February 2012 19:56, biwa net wrote: > Hi Guys > We are experiencing some issues in one of our client sites, > > Basically we migrate from a Cisco to a Juniper MX80, and since there has > been some issues, mainly we are seeing IP addresses be

[j-nsp] proxy arp C vs J

2012-02-06 Thread biwa net
Hi Guys We are experiencing some issues in one of our client sites, Basically we migrate from a Cisco to a Juniper MX80, and since there has been some issues, mainly we are seeing IP addresses being shared by 2-3 mac address, to be precise , mac address being rewritten , ie: one IP is being seen