> > The ISDN link works fine, and telneting into the PM2e, he can ping the
> > LAN port on the P25, but when he pings the serial port on the P25, he can
> > see packets
> > arriving and transmitting but the PM2e never registers the echo packet and
> > thinks it's unreachable.
>
> 'He' sees packets arriving and leaving where? The P25? Is there a trace
> facility on the P25 to report packets?
ok xx.xx.xx.97/27 is the destionation address on the pm2e in the loc file
xx.xx.xx.97/27 is the IF addreess on the ascend (under connection IF
address)
xx.xx.xx.126/27 is the isdn side lan address of the ascend (under mod
ethernet)
xx.xx.xx.33 is the ether0 port on the pm2e
xx.xx.xx.33/24 is the lan address on the Ascend (under connections lan
address)
xx.xx.xx.100 is a unix box that side on the isdn lan
now:
from the pm I can ping xx.xx.xx.126 and I get an answer
from the pm If I ping xx.xx.xx.97 I see the packet arrive at the ascend
and I see that the ascend send them back but they never get there
>From the unix box I can ping xx.xx.xx.97 and xx.xx.xx.126 and I get an
answer
>
> On the PM is there a icmp packet trace filter running?
no
> If a host on the
> thernet of the PM tries to ping the WAN of the P25 what does the PM see?
>
see above
> If the P25 tries to ping the PM WAN interface IP what does the PM see?
did I answer this above?
> If the P25 tries to ping the PM ethernet address (if it is different from
> the WAN address) what does the PM see?
>
see above (the p25 itself can ping anything)
> If a host on the P25 LAN pings the PM's WAN and ethernet address what
> does the PM see? If that host pings a host on the PM's LAN what does the
> PM see?
see above
>
> To create and use the icmp filter on the PM.
>
> Command> add filter p
> Command> set fil p 1 permit icmp
> Command> set console
> Command> pt p
>
> To end the packet filtering
>
> Command> pt
>
will do
> > Do we need to be dealing with two separate class C's-- one subnetted for
> > the assignment pools and one for the segment on ether0?
>
> No. You do need separate 'networks', be they class Cs or subnets.
>
ok
> > Our
> > default gateway is an address on the class C in question which is also a
> > secondary address on a Cisco 2503 ethernet port which routes to our ISP
> > and our other class C networks (secondaries on the same Cisco ethernet
> > interface).When we apply the netmask to the class C, packets get lost for other
> > dial-up hosts on the PM2e and all heck breaks loose.
>
> Secondary enternet addressing...very nasty stuff when it goes wrong.
> Stick to one ethernet network on a physical segement.
would this possible expain what we are seeing?
>
thanks for your help
paonia