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iscsi boot working locally in subnet but not across WAN
2017-05-09, 06:40
Post: #1
iscsi boot working locally in subnet but not across WAN
Hi,
I am trying to boot windows 2008R2 and windows 2016 off an iscsi disk. Both boot successfully when iscsi disk is present in local subnet. When I try to boot from the same iscsi disk across WAN (over vpn), windows get stuck. Looks like ipxe sets up connection with iscsi server, pulls data from iscsi disk, but later windows is not able to setup connection with iscsi server.

Using commit id : 23d388418e8066fc5d609d57c4a0032a982a2dbc
I see other issue with latest git commit id.

Local boot:
-----snip -----
3678 ecr 98046], length 0
18:49:26.327151 IP xxxxxx.32042 > 192.168.3.2.iscsi-target: Flags [P.], seq 328393:328905, ack 64450429, win 512, options [nop,nop,TS val 98098 ecr 5823668], length 512
18:49:26.327167 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [.], ack 328905, win 369, options [nop,nop,TS val 5823678 ecr 98098], length 0
18:49:26.327474 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [P.], seq 64450429:64450477, ack 328905, win 369, options [nop,nop,TS val 5823678 ecr 98098], length 48
18:49:26.530642 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [P.], seq 64450429:64450477, ack 328905, win 369, options [nop,nop,TS val 5823729 ecr 98098], length 48
18:49:26.734652 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [P.], seq 64450429:64450477, ack 328905, win 369, options [nop,nop,TS val 5823780 ecr 98098], length 48
18:49:27.142667 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [P.], seq 64450429:64450477, ack 328905, win 369, options [nop,nop,TS val 5823882 ecr 98098], length 48
18:49:27.958676 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [P.], seq 64450429:64450477, ack 328905, win 369, options [nop,nop,TS val 5824086 ecr 98098], length 48
18:49:29.594666 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [P.], seq 64450429:64450477, ack 328905, win 369, options [nop,nop,TS val 5824495 ecr 98098], length 48
18:49:32.862720 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [P.], seq 64450429:64450477, ack 328905, win 369, options [nop,nop,TS val 5825312 ecr 98098], length 48
18:49:39.406680 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [P.], seq 64450429:64450477, ack 328905, win 369, options [nop,nop,TS val 5826948 ecr 98098], length 48
18:49:52.510728 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [P.], seq 64450429:64450477, ack 328905, win 369, options [nop,nop,TS val 5830224 ecr 98098], length 48
18:50:18.686712 IP 192.168.3.2.iscsi-target > xxxxxx.32042: Flags [P.], seq 64450429:64450477, ack 328905, win 369, options [nop,nop,TS val 5836768 ecr 98098], length 48
18:51:02.040319 IP xxxxxx.49152 > 192.168.3.2.iscsi-target: Flags [S], seq 304383567, win 8192, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0
18:51:02.040388 IP 192.168.3.2.iscsi-target > xxxxxx.49152: Flags [S.], seq 811789009, ack 304383568, win 29200, options [mss 1460,nop,nop,sackOK,nop,wscale 7], length 0
18:51:02.041031 IP xxxxxx.49152 > 192.168.3.2.iscsi-target: Flags [.], ack 1, win 256, length 0
18:51:02.041158 IP xxxxxx.49152 > 192.168.3.2.iscsi-target: Flags [P.], seq 1:181, ack 1, win 256, length 180
18:51:02.041168 IP 192.168.3.2.iscsi-target > xxxxxx.49152: Flags [.], ack 181, win 237, length 0
18:51:02.041343 IP 192.168.3.2.iscsi-target > xxxxxx.49152: Flags [P.], seq 1:89, ack 181, win 237, length 88
-----snip -----


For boot over WAN, there is no new connection establishment (shown in bold) and windows is stuck

Regards,
Kiran
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iscsi boot working locally in subnet but not across WAN - kiran - 2017-05-09 06:40



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