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Packet Captures

hdlc slarp.pcapng.cap 612 bytes

Submitted Jan 29, 2013 by altafk

We can have our serial interface automatically assign itself ip address from neighbor router, like DHCP for serial interfaces.
which is called as SLARP(serial line address resolution protocol).
Here is a packet capture of slarp and the router requesting the addresss and mask from neighbor router.Also the neighboring router responds with its own ip address and mask and this router looks into the mask and assigns itself the next available ip address from the subnet.

SLARP

Packets: 7 Duration: 22s Downloads: 1020

OSPF_Down-Bit.cap 8.9 KB

Submitted Oct 27, 2009 by colinbsd

LSA Update with down bit set. Router R5 56.0.0.5 PE is receiving an update from the MPLS VPN, which is advertised to CE 56.0.0.6 ospf routing table. In order for for the packet(LSA) not to be re-advertised back into the MPLS cloud through another PE(2) router, PE sets the Down-bit to 1. filter: ospf.v2.options.dn == 1

CDP HDLC IP OSPF SLARP

Packets: 98 Duration: 203s Downloads: 6125

HDLC.cap 3.4 KB

Submitted Sep 14, 2009

ICMP across an HDLC serial link.

CDP HDLC ICMP IP SLARP

Packets: 38 Duration: 111s Downloads: 4017