Packet Captures

Auto-RP.cap 726 bytes

Submitted Sep 14, 2009

Routers 2 and 3 have been configured as candidate RPs, and multicast RP announcements to 239.0.1.39. Router 1 is the RP. R1 sees the candidate RP announcements from R2 and R3, and designates R3 the RP because it has a higher IP address (3.3.3.3). R1 multicasts the RP mapping to 224.0.1.40. The capture is from the R1-R2 link.

Auto-RP Ethernet IP UDP

DHCP.cap 5.8 KB

Submitted Sep 29, 2009 by pierky

R0 is the client and R1 is the DHCP server. Lease time is 1 minute.

BOOTP Ethernet IP UDP

DHCP_Inter_VLAN.cap 2.0 KB

Submitted Sep 30, 2009 by pierky

R1 is a router-on-a-stick. It receives a DHCP Discover on the trunk interface, it sets the "Relay agent IP address" to the sub-interface's IP address it received the packet on and, finally, it forwards it to the DHCP server. Capture perspective is R1-DHCP server link.

BOOTP Ethernet IP UDP

DHCP_MessageType 10,11,12 and 13.cap 1.9 KB

Submitted Jan 31, 2011 by Jawahar

BOOTP Ethernet IP UDP

DHCPv6.cap 1.6 KB

Submitted Mar 4, 2015 by fxs007

sample dhcpv6 client server transaction solicit(fresh lease)/advertise/request/reply/release/reply.

DHCPV6 ICMPv6 IPv6 UDP

DNS Question & Answer.pcapng.cap 1.6 KB

Submitted Apr 16, 2014 by manjesh23

DNS Question and Answer

DNS IP UDP

EoMPLS.cap 7.0 KB

Submitted Oct 12, 2009 by pierky

Routers at 1.1.2.1 and 1.1.2.2 are PEs in a MPLS cloud. LDP starts at packet 8 and they build up a pseudo-wire VC (last FEC in packets 11 and 13). At packet 15 we already have STP running between CE1 and CE2 (two routers with ESW), encapsulated in 2 MPLS headers. All the ethernet stuff follows: CDP, ARP, ICMP between two hosts on the same subnet.

Ethernet IP LOOP MPLS TCP UDP

GLBP_election.cap 8.4 KB

Submitted Sep 14, 2009

Routers 1, 2, and 3 participate in a GLBP election. R1 becomes the AVG due to having the highest priority (200), and R3 becomes the standby GLBP. All three routers become AVFs.

Ethernet GLBP IP UDP

HSRP_coup.cap 3.9 KB

Submitted Sep 14, 2009

Initially only routers 3 (active) and 2 (standby) are online. R1 comes online with a priority higher than R3's. R1 takes over as the active router (the coup occurs in packet #22) almost immediately. R2 is bumped down to passive and R3 becomes the standby router.

Ethernet HSRP IP UDP

HSRP_election.cap 3.7 KB

Submitted Sep 14, 2009

The Ethernet link shared by routers 1, 2, and 3 comes online. R1 wins the HSRP election because it has a priority of 200 (versus the default of 100 held by the other two routers). R3 becomes the standby router.

Ethernet HSRP IP UDP

HSRP_failover.cap 3.0 KB

Submitted Sep 14, 2009

R1 is the active router, R3 is the standby, and R2 is passive. R1 goes offline and R3 takes over as active after ten seconds. R2 is then promoted to the standby state.

Ethernet HSRP IP UDP

IPv6_RTSP.cap 15.5 KB

Submitted Jan 12, 2012 by Jawahar

This capture contains IPv6_RTSP packets. Accessed IPv6 enabled RTSP server using 6in4 tunnel.

IP UDP

ISAKMP_sa_setup.cap 2.0 KB

Submitted Sep 14, 2009

An ISAKMP session is established prior to setting up an IPsec tunnel. Phase one occurs in main mode, and phase two occurs in quick mode.

Ethernet IP ISAKMP UDP

LDP_Ethernet_FrameRelay.pcap.cap 2.1 KB

Submitted Dec 5, 2009 by pierky

LDP with pseudowire FEC elements (Ethernet and Frame-Relay DLCI-to-DLCI)

Ethernet IP LDP MPLS TCP UDP

LDP_adjacency.cap 5.7 KB

Submitted Sep 14, 2009

PE1 and P1 multicast LDP hellos to 224.0.0.2 on UDP port 646. They then establish an adjacency on TCP port 646 and exchange labels.

Ethernet IP LDP TCP UDP

OCSP-Good.cap 3.5 KB

Submitted Jun 8, 2011 by kerlenpondi

OCSP_Good (CRL HTTPS CA Verisign)

DNS HTTP IP OCSP TCP UDP

Open Network Connection.pcapng.cap 26.8 KB

Submitted Jul 2, 2014 by correia_ramos

Open Network Connection

ARP DNS HTTP IP MEDIA NBDGM NBNS NTP SMB TCP UDP XML

PIM-DM_pruning.cap 10.2 KB

Submitted Sep 14, 2009

The multicast source at 172.16.40.10 begins sending traffic to the group 239.123.123.123, and PIM-DM floods the traffic down the tree. R4 has no group members, and prunes itself from the tree. R2 and R3 then realize they have no members, and each prunes itself from the tree. The capture shows R2 receiving the multicast traffic flooded from R1 and subsequently pruning itself every three minutes.

Ethernet IP PIM UDP

RADIUS.cap 775 bytes

Submitted Sep 14, 2009

A RADIUS authentication request is issued from a switch at 10.0.0.1 on behalf of an EAP client. The user authenticates via MD5 challenge with the username "John.McGuirk" and the password "S0cc3r".

Ethernet IP RADIUS UDP

RIPv1.cap 876 bytes

Submitted Sep 14, 2009

A RIPv1 router periodically flooding its database. Capture perspective from R1's 10.0.1.1 interface.

Ethernet IP RIP UDP

RIPv1_subnet_down.cap 1.0 KB

Submitted Sep 14, 2009

RIPv1 routes are being flooded on the R1-R2 link. R2's connection to 192.168.2.0/24 goes down, and the route is advertised as unreachable (metric 16) in packet #5. Capture perspective from R1's 10.0.1.1 interface.

Ethernet IP RIP UDP

RIPv2.cap 1.7 KB

Submitted Sep 14, 2009

A RIPv2 router periodically flooding its database. Capture perspective from R1's 10.0.0.1 interface.

Ethernet IP RIP UDP

RIPv2_subnet_down.cap 1.3 KB

Submitted Sep 14, 2009

RIPv2 routes are being flooded on the R1-R2 link. R2's connection to 192.168.2.0/24 goes down, and the route is advertised as unreachable (metric 16) in packet #7. Capture perspective from R1's 10.0.0.1 interface.

Ethernet IP RIP UDP

SNMPv2c_get_requests.cap 894 bytes

Submitted Sep 14, 2009

SNMPv2c get requests are issued from a manager to an SNMP agent in order to monitor the bandwidth utilization of an interface.

Ethernet IP SNMP UDP

SNMPv3.cap 1.3 KB

Submitted Oct 7, 2015 by nra

IP SNMP UDP