Traceroute6 - Ipv6 Syntax; Viewing Ip Routes; Viewing The Address Resolution Protocol Table - Cisco ASR 5000 Installation Manual

Troubleshooting
traceroute6 – IPv6 Syntax
The traceroute6 command has the following syntax:
traceroute6 { host_name | host_ipv6_address } [ count packets ] [ maxttl max_ttl ] [ port port_number
] [ size octet_count ] [ src { src_host_name | src_host_ipv6_address } ] [ timeout seconds ] [ vrf
vrf_nam ]
For a complete description of the above command, see the Exec Mode Commands chapter of the Command
Line Interface Reference.
The following displays a sample output.
traceroute6 to 2001:4A2B::1f3F (2001:4A2B::1f3F), 30 hops max, 40 byte packets
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Viewing IP Routes

The system provides a mechanism for viewing route information to a specific node or for an entire context.
This information can be used to verify network connectivity and to ensure the efficiency of the network
connection. The command has the following syntax:
show ip route [ route_ip_address ]
show ipv6 route [ route_ipv6_address ]
For a complete description of the above command, see the Exec Mode show Commands chapter of the Command
Line Interface Reference.
If no keywords are specified, all IP routes within the context's routing table are displayed.
The following displays a sample of this command's output showing a context IPv4 routing table.
"*" indicates the Best or Used route.
Destination
*0.0.0.0/0
*10.0.4.0/24
*10.0.4.0/32
*10.0.4.3/32
*10.0.4.255/32

Viewing the Address Resolution Protocol Table

The system provides a mechanism for viewing Address Resolution Protocol (ARP) table information to a
specific node or for an entire context. This information can be used to verify that when the system sends an
ARP packet, it receives valid responses from other network nodes. The command has the following syntax:
show ip arp [ arp_ip_address ]
arp_ip_address specifies a specific network node for which to display ARP information. The address can be
entered in IPv4 dotted-decimal or IPv6 colon-separated-hexadecimal notation. If this keyword is not specified,
all entries within the context's ARP table are displayed.
Important
2001:4A2B::1f3F (2001:4A2B::1f3F)
Nexthop
10.0.4.1
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Restarting the VPN Manager removes all interfaces from the kernel which in turn removes all ARP entries.
However, the NPU still retains all of the ARP entries so that there is no traffic disruption. From a user
point of view, show ip arp is broken since this command gathers information from the kernel and not the
NPU.
0.446 ms 0.235 ms 0.178 ms
Protocol Prec Cost Interface
static 0 0 SPIO1
kernel 0 0 SPIO1
kernel 0 0 SPIO1
kernel 0 0 SPIO1
kernel 0 0 SPIO1
ASR 5000 System Administration Guide, StarOS Release 21.2
Viewing IP Routes
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