Hello folks,
I have an issue with ikev2 and the host over the nat. IKE_AUTH packet goes
to ikev2-ip4 node instead of ikev2-ip4-natt and it causes
IKEV2_ERROR_BAD_LENGTH.
I'm not an expert in ike, but are there the right nodes specified below?
udp_register_dst_port (vm, IKEV2_PORT, ikev2_node_ip4.index, 1);
udp_register_dst_port (vm, IKEV2_PORT, ikev2_node_ip6.index, 0);
udp_register_dst_port (vm, IKEV2_PORT_NATT, ikev2_node_ip4.index, 1);
udp_register_dst_port (vm, IKEV2_PORT_NATT, ikev2_node_ip6.index, 0);
Shouldn't it be ikev2_node_ip4_natt instead of ikev2_node_ip4 for
IKEV2_PORT_NATT?
Errors:
12 ikev2-ip4 packets processed
info
6 ikev2-ip4 Bad packet length
error
6 ikev2-ip4 IKE EXCHANGE SA requests
received info
The trace
06:19:16:980290: dpdk-input
GigabitEthernet5/0/0 rx queue 0
buffer 0x84923: current data 0, length 290, buffer-pool 0, ref-count 1,
trace handle 0x1
ext-hdr-valid
PKT MBUF: port 0, nb_segs 1, pkt_len 290
buf_len 2176, data_len 290, ol_flags 0x180, data_off 128, phys_addr
0x59124940
packet_type 0x211 l2_len 0 l3_len 0 outer_l2_len 0 outer_l3_len 0
rss 0x0 fdir.hi 0x0 fdir.lo 0x0
Packet Offload Flags
PKT_RX_IP_CKSUM_GOOD (0x0080) IP cksum of RX pkt. is valid
PKT_RX_IP_CKSUM_NONE (0x0090) no IP cksum of RX pkt.
PKT_RX_L4_CKSUM_GOOD (0x0100) L4 cksum of RX pkt. is valid
PKT_RX_L4_CKSUM_NONE (0x0108) no L4 cksum of RX pkt.
Packet Types
RTE_PTYPE_L2_ETHER (0x0001) Ethernet packet
RTE_PTYPE_L3_IPV4 (0x0010) IPv4 packet without extension headers
RTE_PTYPE_L4_UDP (0x0200) UDP packet
IP4: 10:0e:7e:bb:78:40 -> 38:ea:a7:37:59:90 802.1q vlan 1191
UDP: X.X.X.X -> Y.Y.Y.Y
tos 0x28, ttl 216, length 272, checksum 0xe170 dscp AF11 ecn NON_ECN
fragment id 0x0000
UDP: 23911 -> 4500
length 252, checksum 0x0000
06:19:16:980294: bond-input
src 10:0e:7e:bb:78:40, dst 38:ea:a7:37:59:90, GigabitEthernet5/0/0 ->
BondEthernet10
06:19:16:980294: ethernet-input
IP4: 10:0e:7e:bb:78:40 -> 38:ea:a7:37:59:90 802.1q vlan 1191
06:19:16:980295: ip4-input
UDP: X.X.X.X -> Y.Y.Y.Y
tos 0x28, ttl 216, length 272, checksum 0xe170 dscp AF11 ecn NON_ECN
fragment id 0x0000
UDP: 23911 -> 4500
length 252, checksum 0x0000
06:19:16:980296: ip4-lookup
fib 0 dpo-idx 6 flow hash: 0x00000000
UDP: X.X.X.X -> Y.Y.Y.Y
tos 0x28, ttl 216, length 272, checksum 0xe170 dscp AF11 ecn NON_ECN
fragment id 0x0000
UDP: 23911 -> 4500
length 252, checksum 0x0000
06:19:16:980296: ip4-receive
UDP: X.X.X.X -> Y.Y.Y.Y
tos 0x28, ttl 216, length 272, checksum 0xe170 dscp AF11 ecn NON_ECN
fragment id 0x0000
UDP: 23911 -> 4500
length 252, checksum 0x0000
06:19:16:980297: ip4-udp-lookup
UDP: src-port 23911 dst-port 4500
06:19:16:980300: ikev2-ip4
ikev2: sw_if_index 10, next index 1
06:19:16:980301: error-drop
rx:BondEthernet10.1191
06:19:16:980301: drop
ip4-udp-lookup: none
--
Best regards
Stanislav Zaikin
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