[nsp] Weird ATM/DSL problem? (fwd)

From: John Gonzalez/netMDC admin (ekool@ns1.netmdc.com)
Date: Thu Jan 18 2001 - 20:15:41 EST


I've got a customer setup on a test DSL link (actually, its us, not a
customer, but you get the idea)

The weird thing is, its up and running. However, we are pinging out from
the machine, and the ping stops for no reason.. I can ping the ip from the
router and all is well. For some reason, the router is dropping the
machine out of the ARP table.. i can do a sh arp and it will only last
about a minute before failing.. then, i ping it, and all is
well. Sometimes it takes longer then a minute to stop working too, but a
ping always brings it back...

I'm wondering what i've done wrong.. we copied the config from our other
dslams that are working fine... and they do not experience this.

Is it a router setup prob, or perhaps something wrong with the windows
box, or the DSLAM itself?

i've tried changing the "arp" protocol, and setting arp-server self...

Here is a small snippet of our cisco config...

bridge irb
!
interface ATM2/0
 description ATM to conklin
 no ip address
 ip directed-broadcast
 no ip route-cache
 no ip mroute-cache
 atm vc-per-vp 256
 no atm ilmi-keepalive
 no scrambling-payload
!
interface ATM2/0.1 multipoint
 description PVC to AFC DSL
 ip directed-broadcast
 no ip route-cache
 no ip mroute-cache
 pvc 0/32
  protocol ip 63.162.109.66 broadcast
 !
 pvc 0/33
  protocol ip 63.162.109.67 broadcast
 !
 bridge-group 3
 bridge-group 3 spanning-disabled
!

interface BVI3
 description BVI for AFC DSLAM
 ip address 63.162.109.65 255.255.255.224
 no ip route-cache
 no ip mroute-cache

-- 
John Gonzalez / johng@netmdc.com / johng@tularosa.net
Tularosa Communications, Inc. (505) 439-0200 voice / (505) 443-1228 fax
http://www.tularosa.net / ASN 11711 / JG6416
[----------------------------------------------[ sys info ]-----------]
  1:50pm  up 133 days, 20:19,  4 users,  load average: 0.47, 0.28, 0.26



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