08-31-2023 06:44 AM - edited 08-31-2023 06:45 AM
Hi all,
I'm moving from OPNSense to Cisco XRv9000, and am trying to get internet access to the Cisco router. I can ping 8.8.8.8 but pinging www.google.com does not work.
RP/0/RP0/CPU0:xrv1#ping 8.8.8.8 Thu Aug 31 13:32:21.410 UTC Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 13/14/15 ms RP/0/RP0/CPU0:xrv1#ping www.google.com Thu Aug 31 13:31:50.829 UTC Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2a00:1450:400b:c03::68, timeout is 2 seconds: ..... Success rate is 0 percent (0/5)
This is from a different machine on the same network as the Cisco, DNS seems to be working fine.
Windows IP Configuration Host Name . . . . . . . . . . . . : DESKTOP-OVF6PQC Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Ethernet0: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) 82574L Gigabit Network Connection Physical Address. . . . . . . . . : 00-0C-29-9E-BA-50 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::a537:55cd:da00:8e0d%13(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.11.221(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.11.2 DHCPv6 IAID . . . . . . . . . . . : 100666409 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-2C-09-DB-DD-00-0C-29-9E-BA-50 DNS Servers . . . . . . . . . . . : 192.168.11.5 NetBIOS over Tcpip. . . . . . . . : Enabled PS C:\Windows\system32> ping www.google.com Pinging www.google.com [209.85.202.99] with 32 bytes of data: Reply from 209.85.202.99: bytes=32 time=58ms TTL=127 Reply from 209.85.202.99: bytes=32 time=51ms TTL=127 Reply from 209.85.202.99: bytes=32 time=20ms TTL=127 Reply from 209.85.202.99: bytes=32 time=27ms TTL=127 Ping statistics for 209.85.202.99: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 20ms, Maximum = 58ms, Average = 39ms
Cisco Configuration
RP/0/RP0/CPU0:xrv1#show running-config Thu Aug 31 13:29:24.825 UTC Building configuration... !! IOS XR Configuration 7.2.1 !! Last configuration change at Thu Aug 31 13:24:27 2023 by admin ! hostname xrv1 domain name vlab.lab domain name-server 192.168.11.5 domain lookup source-interface MgmtEth0/RP0/CPU0/0 username admin group root-lr group cisco-support ! call-home service active contact smart-licensing profile CiscoTAC-1 active destination transport-method http ! ! interface MgmtEth0/RP0/CPU0/0 ipv4 address 192.168.11.100 255.255.255.0 ! interface GigabitEthernet0/0/0/0 ipv4 address 192.168.1.100 255.255.255.0 ! interface GigabitEthernet0/0/0/1 shutdown ! interface GigabitEthernet0/0/0/2 shutdown ! interface GigabitEthernet0/0/0/3 shutdown ! interface GigabitEthernet0/0/0/4 shutdown ! interface GigabitEthernet0/0/0/5 shutdown ! interface GigabitEthernet0/0/0/6 shutdown ! router static address-family ipv4 unicast 0.0.0.0/0 192.168.11.2 ! ! ssh server v2 end
Not sure what's missing.
08-31-2023 07:00 AM
If you would look at the PING output, you would see, that you are trying to ping an IPv6 address.
If you don't use IPv6, then it probably won't work.
08-31-2023 07:17 AM
Thanks for pointing that out, I see it now.
I'm not using IPv6, and have disabled it on all ports, still the same reply but on a different IPv6 address.
Sending 5, 100-byte ICMP Echos to 2a00:1450:400b:c01::6a, timeout is 2 seconds: ..... Success rate is 0 percent (0/5)
08-31-2023 07:53 AM
I have to use ping ipv4 to get a success reply over ipv4..
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